Harry Potter and the Half-Blood Prince Movie Poster

Trivia for Harry Potter and the Half-Blood Prince

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  • Anand Tucker and Michael Hoffman were rumored as possible directors.
  • Robert Knox (Marcus Belby) was tragically stabbed to death on May 24, 2008, just a few days after filming wrapped.
  • Christian Coulson, who played Tom Riddle in Harry Potter and the Chamber of Secrets (2002), expressed an interest in returning as Riddle for this movie, but director David Yates recognized that Coulson was too old for the role, being nearly thirty in 2008/2009.
  • Thomas James Longley, James Lee Hunt, and Andrew Clarke auditioned for the role of Tom Riddle, but lost out to Frank Dillane.
  • Dame Maggie Smith completed filming this movie while undergoing radio-therapy as treatment for breast cancer.
  • The original script included all of Dumbledore's memories about Voldemort, as outlined in the source novel, but director David Yates insisted on trimming them down, as, according to screenwriter Steve Kloves, "he wanted to showcase Voldemort's rise without getting overly involved with his past as Riddle."
  • Naomi Watts was previously reported as having accepted the role of Narcissa Malfoy, only for it to be denied her by her agency.
  • Three new scenes were added that do not appear in the book: the collapsing Millennium bridge (at the beginning of this movie, and which appears in the third trailer); Harry (Daniel Radcliffe) flirting with the waitress at the underground station before meeting up with Dumbledore (Sir Michael Gambon); and the Death Eater attack at the Burrow (seen in the second trailer). An attack on a Muggle bridge is actually mentioned in the original opening of the book by Cornelius Fudge, but in an after the fact manner.
  • Hero Fiennes Tiffin was cast as Tom Riddle, age eleven, while his uncle, Ralph Fiennes played Lord Voldemort (formerly Tom Riddle). His parents are Martha Fiennes (Ralph's sister) and George Tiffin. Director David Yates says that he hired Hero because of his resemblance to his uncle, but not specifically because he was the actor's nephew. He liked the dark haunted quality about the young actor.
  • Helen McCrory (Narcissa Malfoy) had been cast to play Narcissa's sister Bellatrix Lestrange in Harry Potter and the Order of the Phoenix (2007), but had to back out because she was pregnant.
  • J.K. Rowling read through the script, and found a line where Dumbledore mentions a girl he had a crush on when he was younger. After reading it, she informed the filmmakers that Dumbledore is in fact gay, and that his only romantic infatuation was with the wizard Grindelwald, whom he later had to defeat in a wizard duel. She later made this information public while promoting the final book, "Harry Potter and the Deathly Hallows".
  • Shipped to some theaters under the moniker "Candlelit".
  • There is a scene in the movie in which Death Eaters, led by Bellatrix Lestrange and Fenrir Greyback, attack the Burrow, where Harry, the Weasleys, Lupin, and Tonks are staying. This particular scene was not in the book, but was made just for the movie to serve as a representative of all of the news reports, which are scattered around in the source novel, about various attacks by Death Eaters on the wizard community. It was considered to provide better pacing for a movie to have Harry actually experience one such attack firsthand, rather than hearing/reading about those that kept happening to some other students or their relatives.
  • (At around forty minutes) According to production designer Stuart Craig, Tom Riddle's orphanage is based on buildings from the Liverpool Docklands, and it is influenced by Victorian-Georgian architecture. In fact, the orphanage's exterior uses original Victorian glaze bricks, to give the set a very hard structure.
  • (At around two hours and five minutes) Visual effects supervisor Tim Alexander described Dumbledore's (Sir Michael Gambon's) ring of fire as "someone sprayed propane and then lit it." Then, to enhance the effect, the visual effects team spent a lot of research on molten volcanoes (which have a lot of heat, but no actual flames), and other references, including flares that burn underwater. The whole fire scene was very time consuming, with computer graphics artist Christopher Horvath spending eight months on it.
  • Over seven thousand girls auditioned for the role of Lavender Brown, and read from a scene with Madam Pomfrey, Hermione, and Ron. Ironically, Emma Watson recommended Jessie Cave for the role, which she got, even though she hadn't attended any of those auditions.
  • Jamie Campbell Bower hoped to be cast as a young Riddle. He was instead cast as the teenage Gellert Grindelwald in Harry Potter and the Deathly Hallows: Part 1 (2010).
  • Terry Gilliam, who was J.K. Rowling's personal choice to direct Harry Potter and the Sorcerer's/Philosopher's Stone (2001), was approached to direct this movie. However, Gilliam said, "Warner Brothers had their chance the first time around, and they blew it."
  • Bill Nighy was hired to play Rufus Scrimgeour (Minister of Magic), but there was no place for the character in this movie. Instead, the same role was reassigned to Harry Potter and the Deathly Hallows: Part 1 (2010).
  • The night scenes were filmed in the quaint village of Lacock and the cloisters at Lacock Abbey for three nights, October 25 to 28, 2007. Filming took place from 5 p.m. to 5 a.m., and residents of the street were asked to black out their windows with dark blinds.
  • (At around two hours and five minutes) When Draco Malfoy goes to the Room of Requirement for the final time, you can see the harp that put Fluffy to sleep and the King from the game of chess from Harry Potter and the Sorcerer's/Philosopher's Stone (2001).
  • The second Harry Potter movie to not open with a "Harry-centric" event. Harry Potter and the Goblet of Fire (2005) opened with a scene from a chapter of the fourth book, "The Riddle House". This movie opened with an event which was mentioned in the first chapter of the sixth book, "The Other Minister", where the Death Eaters collapse the Millennium Bridge in London. (Although the first images in this movie are of Harry and Dumbledore at the Ministry of Magic after the battle with Voldemort in Harry Potter and the Order of the Phoenix (2007), the first legitimate and complete scene is the Death Eater attack.)
  • (At around forty-four minutes) The tapestry seen near the Room of Requirement is the last of seven in "The Hunt of the Unicorn" (or the "Unicorn Tapestries") series, called "The Unicorn in Captivity." The real tapestry can be found at the Cloisters in New York City.
  • (At around one hour and sixteen minutes) Mr. Weasley's (Mark Williams') shed of Muggle artifacts contains, amongst other things, two Remington Noiseless Portable Typewriters and an HP Laserjet 4. Interestingly enough, Harry's initials are "H.P."
  • Timothy Spall played Wormtail (Peter Pettigrew) for the fourth time, and is credited on the poster for this movie, but in Harry Potter and the Order of the Phoenix (2007) and this movie, he does not have any dialogue.
  • (At around thirty minutes) This is the first Harry Potter movie that does not feature any aspect of Defense Against the Dark Arts classes on-screen, either directly (Harry Potter and the Chamber of Secrets (2002) through Harry Potter and the Order of the Phoenix (2007)) or indirectly (Harry Potter and the Sorcerer's/Philosopher's Stone (2001)). The only mention of the subject occurs when Dumbledore (Sir Michael Gambon) announces Snape's (Alan Rickman's) appointment to the open teaching position.
  • (At around two hours and fifteen minutes) When Harry is in Dumbledore's office at the end of the movie, a bowl of sherbet lemons can be seen on his desk. In "Harry Potter and the Sorcerer's/Philosopher's Stone", Dumbledore announced these to be his favorite Muggle candy. In "Harry Potter and the Chamber of Secrets", it is the password to enter Dumbledore's office.
  • (At around two minutes) At the beginning of this movie, the Death Eaters destroy the Millennium Bridge in London. The book is set in 1996-1997, according to the canon timeline. The Millennium Bridge was not constructed until 1998, and opened on June 10, 2000.
  • (At around eight minutes) Much like the first book, some differences exist between the British and American editions of the text. One such difference is in the scene where Dumbledore takes Harry to meet Slughorn. In the American edition of the book, Dumbledore excuses himself to use the bathroom. In this movie, he uses the more British term, "loo". This is in contrast to Harry Potter and the Sorcerer's/Philosopher's Stone (2001), in which such references were shot twice to accommodate American and British audiences.
  • This is the second time Tom Felton and Jim Broadbent have worked together. The first time was in The Borrowers (1997), as members of the four-inch tall family; son Peagreen Clock and his father Pod Clock respectively. Also, Mark Williams (Arthur Weasley) played the part of Jeff the Exterminator.
  • On one occasion in the book, in which Professor Slughorn gets Ron's name wrong, he refers to the character as "Rupert" - Chapter 22. Ron Weasley was played by Rupert Grint.
  • Even though they feature in the beginning of the book, the Dursleys did not appear in this movie. This is the second movie out of which they have been left, with the first being Harry Potter and the Goblet of Fire (2005).
  • The sixth of eight movies based on the Harry Potter book series by J.K. Rowling.
  • Bob Hoskins was also considered for the role of Horace Slughorn.
  • Originally to be released on November 21, 2008, the studio decided to postpone it to July 15, 2009. Officially, the decision, according to studio chief Alan Horn was largely due to the writers' strike at that time, but unofficially, and known to most, the decision was following the massive earnings made by another studio movie, The Dark Knight (2008) that released on that week of July. With that, Twilight (2008), which was supposedly to be released on December 12, 2008, moved to fill in that vacant release slot.
  • (At around two minutes) The entrance to "The Leaky Cauldron" and, behind it, Diagon Alley is shown to be on Great Newport Street, just off Charing Cross Road, between the bookshop and number 12.
  • David Yates is the first director since Chris Columbus to make more than one Harry Potter movie.
  • On December 12, 2009, a special "BD-Live" screening event of this movie was held for owners of the movie on Blu-ray, a first of its kind. It allowed people to watch this movie on Blu-ray, while listening live to Daniel Radcliffe and David Barron (sitting in for David Yates, who was ill), who were watching, and administering the event. There they discussed various aspects of the entire franchise, while the movie was showing, and even had some questions from viewers to address. Amongst the all too few trivia bits on this particular movie they revealed during this screening are: The "Butterbeer" the students drink in this movie is actually a well-known British fruit drink called "J20", with fake foam added on top. However, an official "ButterBeer" is in the making for a planned Harry Potter theme park. The foam in Ron's mouth in one scene was made of egg white. Daniel admitted he never tries to go for "real tears" in any such scenes, by advice he got from Kenneth Branagh. Instead, he relies on acting and "tricks of the trade" to get the desired effect across. The strange "fluid" in Dumbledore's Pensive was entirely done with CGI. That highly torturous fluid in the cave that Dumbledore drinks, was really just some milk thinned down with water and then visually "tweaked" by the CGI Department. Barron commented that David Yates and the composer tried "for months" to create a specific "Phoenix song" score which they felt would do its book description justice, for the scene where the bird leaves Hogwarts. Several different things were composed and tested, before they pretty much gave up trying, and settled on this very basic score we now hear at the end of the movie.
  • (At around ten minutes) Professor Slughorn (Jim Broadbent) says that he taught the entire Black family except for Sirius. As Hogwarts only has one teacher for each subject, it may seem a bit odd that he would not have taught Sirius. The book explains this differently, however. In addition to teaching Potions, Slughorn was also head of Slytherin House, where all of the Blacks, except Sirius, were sorted. So while Slughorn taught Sirius, he never had him in Slytherin.
  • Steve Kloves' script originally used all six flashbacks of Voldemort that are described in the book. In the movie, only two were used that had direct relevance to the plot. Had all of the remaining flashbacks remained, they would have provided more exposition and backstory, such as how Merope Gaunt (Tom Riddle's mother) met Tom Riddle, Sr. (his father) in the 1920s, and seduced him with love potion; how young Voldemort tracked down his maternal uncle Morfin Gaunt in Little Hangleton in 1943, stole his black family ring and murdered the Riddle family; the origins of Hufflepuff's Cup being a horcrux, which pays off in Harry Potter and the Deathly Hallows: Part 2 (2011); and finally, explaining why the Defense Against the Dark Arts job is jinxed, with each teacher lasting no more than one year since 1956, when Dumbledore turned down Tom Riddle's request to teach in that position.
  • Voldemort was born on New Year's Eve 1926.
  • As an homage to J.K. Rowling, Stephen King, a fan of hers, included a reference to the series in his novel "Wolves of Calla", featuring Snitches as flying grenades. "Wolves of Calla" was published one year before the "Harry Potter and the Half-Blood Prince" novel. Rowling, in turn, returned the favor: the Gaunts (Voldemort's maternal family, though Dumbledore did not mention this in the movie) alluded to Leland Gaunt, the lead antagonist in King's novel "Needful Things" (played by Max von Sydow in Needful Things (1993)).
  • Fake working title seen on clapper boards: "Champion".
  • Wanting to bring a different look to this movie, director David Yates chose French cinematographer Bruno Delbonnel, known for his use of stylized color palettes that often featured prominent earthy tones. At first, the movie was extensively color graded, and due to the overly dark tones, Warner Brothers asked Yates and Delbonnel to add more colors to the movie, as they could barely see a thing on-screen. Yates and Delbonnel were hesitant to do this at first, but after retouching some of the scenes, Delbonnel realized that he had overused the grading, and the final product was better. Yates remarked Delbonnel's work on this movie as "The choice of angles, the extreme close-ups, the pacing of the scenes, it's very layered, incredibly rich." It was the first (and ultimately, only) movie in the Harry Potter franchise to be nominated for a Cinematography Oscar.
  • Production designer Stuart Craig revealed that the Three Broomsticks' design was constructed for the Wizarding World of Harry Potter theme park first. Subsequently, the film crew constructed an exact replica during filming.
  • David Yates and the producers asked Wally Pfister if he could do the cinematography for this movie. Pfister declined since The Dark Knight (2008) was shooting at the same time, citing schedule conflicts.
  • Mark Day is the fifth editor the Harry Potter film franchise has, and is the only one who has, edited more than one movie. He was involved the franchise since Harry Potter and the Order of the Phoenix (2007).
  • Like many of the fashions at Hogwarts, Professor Slughorn's mortarboard cap has a rich history. It was used in the fourteenth and fifteenth centuries to identify humanists, students, artists, and the learned in general. Slughorn's tassel is black, signifying an advanced degree.
  • Filming returned to Gloucester Cathedral for the first time since Harry Potter and the Chamber of Secrets (2002).
  • (At around one hour and forty-five minutes) The drinking song that Hagrid (Robbie Coltrane) and Slughorn (Jim Broadbent) are singing is titled "Odo the Hero". It was written by J.K. Rowling, but only the last four verses are known.
  • The set used for Professor Slughorn's office is a redress of the set that served as the Trophy Room in Harry Potter and the Goblet of Fire (2005). The same set also served as the Room of Requirement in Harry Potter and the Order of the Phoenix (2007) as well as this movie.
  • (At around one hour and twenty-nine minutes) Professor Slughorn's toast, "To life", is very similar to the Jewish toast, "L'Chaim!", which means enjoying life and celebrating all of its amazing (and sometimes unexpected) happenings.
  • Although all of the teachers at Hogwarts are addressed as "Professor", J.K. Rowling has said that there is no university for wizards. This revelation has two implications: first, that the professor salutation is an honorific; second, that those who wish to learn more than standard schooling must apprentice themselves to experts in any given field, just as was done in the Middle Ages.
  • The only Harry Potter movie to be Oscar nominated for the Best Cinematography Academy Award.
  • Many fans have expressed distaste in the fact that Harry is shown at a train station, saying it would make more sense for him to be at the Dursleys'. This is actually a nod to the book, because Harry said he liked riding trains, that it "helped him take his mind off things."
  • Warner Brothers received death threats for pushing the movie's release date to 2009 when it was scheduled to be released in 2008.
  • Kevin McKidd was offered the role of werewolf Fenrir Greyback, but could not take part, due to his commitments in other projects, including Grey's Anatomy (2005). He has since stated that he was glad he did not to take the role, for his young children would not take kindly to his appearance on-screen. Ironically, McKidd once played the lead role in Dog Soldiers (2002), which saw him battling a pack of werewolves.
  • Horace Slughorn's appearance in this movie differs dramatically from his description in the book, possibly more than any other character. In the book, he is described as being extremely fat and bald, with a "walrus-like" mustache. In this movie, he is depicted as being only slightly overweight, his hair is only slightly thinning, and he doesn't sport any facial hair at all. However, his character is quite similar: although Slughorn is depicted as somewhat shrewd and opportunistic, in both the book and movie, he is a friendly man, who breaks with the traditional character of Slytherins being cold and unsympathetic.
  • Horace Slughorn's (Jim Broadbent's) outfits were designed to look very rich and elegant, but also old and threadbare. The costumes were distressed to make them appear worn, and in addition, were washed in a powdery solution to make them appear as if they had gathered dust during the years of Slughorn's retirement.
  • Director David Yates stated in an interview that the color palette and lighting methods used in this movie were heavily inspired by the Dutch painter Rembrandt.
  • The scene where Harry is at a train station at the start of this movie was shot at Surbiton station in Surrey, a well-known commuter station in Greater London Zone 6.
  • Daniel Radcliffe's least favorite own performance in the franchise, stating in an interview in 2014 that he was "just not very good in it", and calling it "hard to watch". He also revealed that he was struggling with alcohol at the time of filming and can tell in certain scenes that he was intoxicated.
  • Some fans expressed distaste that Slughorn played favorites with students, but J.K. Rowling explained it differently. Professor Slughorn is a meritocratic teacher. He shows interest and appreciation towards those who are smart, capable, and well-connected. If a student wishes to gain attention, then they need to excel in their work. By being choosy with his favors, Slughorn spurs all of his students to try harder.
  • In this movie, Lavender Brown is portrayed by Jessie Cave, a white actress. However in previous movies, Lavender was portrayed by black actresses; Kathleen McAuley in Harry Potter and the Chamber of Secrets (2002), and Jennifer Smith in Harry Potter and the Prisoner of Azkaban (2004).
  • Unlike the book, Harry (Daniel Radcliffe) and Ginny (Bonnie Wright) become an item during the Christmas holidays. It was never explained why Ginny and Dean (Alfred Enoch) split up in this movie, but it is strongly implied they argued a lot as hinted by Hermione (Emma Watson) during the Slugclub scene.
  • During the memory scenes involving young Tom Riddle, including the orphanage, the scenery is green, which is one of the colors of Slytherin, into which Tom Riddle was sorted, as he was the last descendent of Salazar Slytherin.
  • (At around twenty minutes) The tiny dragon seen heating up chestnuts in Diagon Alley is the miniature version of the Hungarian Horntail, which Harry faced in the first task of the Triwizard Tournament in Harry Potter and the Goblet of Fire (2005).
  • Alfonso Cuarón, the director of Harry Potter and the Prisoner of Azkaban (2004), stated he "would love to have the opportunity" to return to direct this movie.
  • Mike Newell, who directed Harry Potter and the Goblet of Fire (2005), declined a spot to direct Harry Potter and the Order of the Phoenix (2007), and was not approached for this one.
  • Emma Watson considered not returning for this movie, but eventually decided that "the pluses outweighed the minuses", and could not bear to see anyone else play Hermione.
  • Warner Brothers spent an estimated one hundred fifty-five million dollars to market and distribute this movie.
  • At two hours and thirty-three minutes long, this is the third longest movie in the franchise, behind Harry Potter and the Chamber of Secrets (2002) (two hours and forty-one minutes) and Harry Potter and the Goblet of Fire (2005) (two hours and thirty-seven minutes).
  • At the time of its release, J.K. Rowling stated that this was her "favorite one" of the six movie adaptations.
  • Advance ticket sales on Fandango.com for this movie surpassed advance ticket sales for Transformers: Revenge of the Fallen (2009) at the same point in sale cycles. It is also in MovieTickets.com's top 25 advance sellers of all time.
  • Clémence Poésy, who played Fleur Delacour, and Chris Rankin, who played Percy Weasley, were interested in returning, but did not appear in this movie.
  • After Bill Nighy expressed an interest in appearing, David Yates confirmed that Nighy would be his first choice for the role of Minister for Magic Rufus Scrimgeour. Scrimgeour's character was ultimately cut from this movie, but Nighy appeared in his role in Harry Potter and the Deathly Hallows: Part 1 (2010).
  • Director David Yates and producer David Heyman have noted that some of the events of the novel, "Harry Potter and the Deathly Hallows", influenced the script.
  • (At around thirty-seven minutes) Towards the end of Potions class, Emma Watson's hair is all bushy, which is the same style Hermione has in the book series.
  • The Pensieve in this movie is different from the version of Harry Potter and the Goblet of Fire (2005). The pensive can somehow float in midair, presumably by a Charms spell, and Harry is not seen in the pensive this time, but it can be argued the memories are seen by Harry via first person. Harry, unlike the book version of this movie, sees the first two memories without Dumbledore, but it is implied the pair saw Slughorn's true memory together.
  • Chris Columbus, the director of the first two Harry Potter movies, was amazed how beautifully Daniel Radcliffe, Emma Watson, and Rupert Grint matured over the series, compared to some child actors and actresses who start out adorable and then either lose that or become bad actors and actresses as they grow older.
  • (At around forty minutes) The tile in young Tom Riddle's room, in the flashback, is the same tile as the Department of Mysteries in Harry Potter and the Order of the Phoenix (2007).
  • Until the Special Edition re-releases of all eight movies in 2016, this was the only installment in the franchise where Ron and Hermione did not appear on the DVD or Blu-ray cover art.
  • Regulus Black (Tom Moorcroft), Lily Evans (Susie Shinner), and Lucius Malfoy (Tony Coburn) all were supposed to be amongst Horace Slughorn's previous favorite students. They were amongst those in Slughorn's photographs. Yet another photograph shown to Harry was that of "Daily Prophet" Editor Barnabas Cuffe (Roger C. Bailey). Unfortunately, long shots or only the backs of the frames were shown. This resulted in deleted scenes for all of the actors.
  • When Christian Coulson was cast to play a sixteen-year-old Tom Riddle in Harry Potter and the Chamber of Secrets (2002), he was twenty-three years old, but in this movie, Frank Dillane, who was seventeen at the time, played Tom Riddle, who was a similar age to him.
  • (At around forty-two minutes) There is only one split second scene of Lord Voldemort (not of Tom Riddle) in this movie which is shown in the flashback.
  • Featured two sets of twins: James Phelps and Oliver Phelps (born February 25, 1986) and Amber Evans and Ruby Evans (born January 7, 1979). The Phelps twins played the Weasley twins; the Evans twins were listed as "Twin Girl 1" and "Twin Girl 2".)
  • Throughout the eight-movie franchise, five actresses played "Pansy Parkinson": 1-Katherine Nicholson (Harry Potter and the Sorcerer's/Philosopher's Stone (2001) and Harry Potter and the Chamber of Secrets (2002), uncredited in both), 2-Genevieve Gaunt (Harry Potter and the Prisoner of Azkaban (2004)), 3-Charlotte Ritchie (Harry Potter and the Goblet of Fire (2005), originally listed as "Student" and uncredited), 4-Lauren Shotton (Harry Potter and the Order of the Phoenix (2007) again, uncredited as Pansy), and, 5-Scarlett Hefner (Harry Potter and the Half-Blood Prince (2009), Harry Potter and the Deathly Hallows: Part 1 (2010), and Harry Potter and the Deathly Hallows: Part 2 (2011)).
  • In this movie, young Dumbledore and Tom Riddle swap seats. Tom sits on a chair while Dumbledore sits on the bed, unlike the book when the two sat in opposite seats.
  • Gemma Jones (Madam Pomfrey) and Jim Broadbent (Professor Slughorn) played husband and wife as parents to Renée Zellweger's title character in the Bridget Jones film franchise. Shirley Henderson (Moaning Myrtle in the Harry Potter movies) appeared in the Bridget Jones franchise as Jude, Bridget's friend.
  • When Slughorn shows Harry Lily in a Slugclub photo, she has a "bump" and wears a baggy looking dress. This implies Lily was pregnant with Harry in that photo.
  • This is the first movie where Bonnie Wright was given prominent billing, despite appearing in every film in the franchise.
  • When the trio sit down at the Three Broomsticks, Hermione orders three butterbeers "And put a little ginger in mine".
  • Ron wearing a scrum cap (a.k.a. rugby helmet) while in goal could be a nod to Petr Cech the legendary Chelsea and Arsenal goalkeeper who began wearing one after his famous head injury in 2006 against Reading.
  • This is the first movie since Harry Potter and the Sorcerer's/Philosopher's Stone (2001) to feature a full game of Quidditch. However, the Quidditch World Cup was featured in the opening of Harry Potter and the Goblet of Fire (2005) before being completely absent in Harry Potter and the Order of the Phoenix (2007).
  • (At around one hour and forty minutes) When Ginny and Harry enter the Room of Requirement, a familiar mirror can be seen behind them. The shape of this is the same as the Mirror of Erised from the first movie and book.
  • Even though it was only acting, Rupert Grint claimed he felt guilty about doing the part where Ron deliberately sat between Harry and his sister Ginny after the two were left alone on the sofa.

Spoilers

  • Originally, the shooting script was written so that Harry takes possession of Dumbledore's wand after he is killed. Shortly before filming began, the final book in the series came out, in which Dumbledore's wand, and who possesses it, turn out to be major issues, so the script had to be changed.
  • (At around two hours and five minutes) According to visual effects supervisor Tim Alexander, completing the Inferius attack took several months: "It was much bolder and scarier than we imagined that they'd ever go in a Potter movie. David Yates was really cautious of not making this into a zombie movie, so we were constantly trying to figure out how not to make these dead people coming up look like zombies. A lot of it came down to their movement. They don't move fast, but they don't move really slow or groan and moan. We ended up going with a very realistic style." He also noted that Inferi are skinnier than zombies, as well as being waterlogged and grey.
  • Dumbledore's fall from the tower filled Alan Rickman with nostalgic glee, as it harkened back to his first hit, Die Hard (1988), where his character fell from a tall building. Rickman felt at least "he was on the other end in this film!"
  • The omission in this movie of the battle at Hogwarts between members of the Order of the Phoenix and Death Eaters was due to the fact that the writers did not want to seek repetition when they filmed the climactic battle of the final movie.
  • Tom Felton has stated in an interview, that in the near-end sequence of this movie, after Snape kills Dumbledore, and is leading the other Death Eaters out of Hogwarts and through the Great Hall, an accident had occurred on the set a few minutes into the shooting. Before the actors and actresses had started filming, Alan Rickman "turned around in this very sinister way and said, 'don't step on my cloak,'" (at the time of which it was unclear to his fellow co-stars if he was joking or not) as David Yates had instructed the other actors and actresses that when shooting began, they were to stay close behind Rickman as they followed him without looking at their feet - a difficult task, due to the dragging length of Snape's cloak. As shooting began during the second take, Felton, being the closest person to Rickman in the scene, had accidentally dug his heel into the cloak, causing Rickman's neck to rip back. Felton had reported there was an awkward silence afterward, clear that Rickman was not in a good mood after the accident had occurred. Felton continuously apologized to Rickman afterward, in that Rickman did accept and made a joke of the accident later on.
  • (At around forty minutes) In the flashback scene in which Dumbledore visits the young Tom Riddle in the orphanage, a photograph on the wall of Tom's room depicts the seaside cliff to which Dumbledore and Harry travel later, in search of the third Horcrux (the locket). There are also seven rocks on the windowsill, which is the same number of Horcruxes that Tom/Voldemort created. In the book, the cliff is described as a place where young Tom Riddle once used magic to terrorize his fellow orphans while on a field trip, hence the place has special meaning to him. There is no picture of it in the book, implying that Dumbledore learned of the place from the orphanage staff or its students.
  • (At around fourteen minutes) When Harry, Ron, and Hermione are talking about Dumbledore's age, Ron says "About one hundred fifty, give or take a few years" and they start laughing as if it was a joke. This is also the exact number that J.K. Rowling provided during an interview. She later officially stated on her website, that Dumbledore was one hundred fifteen-years-old at the time of his death.
  • The character Fenrir Greyback is a direct reference to Fenris the wolf as depicted in the Nordic mythology. In that myth, Fenris bit the arm of Tyr and was prophesied to be involved in Odin's death as will be killed by Tyr's brother Vidar during Ragnarok. The novel shares the similar mythology: Bill Weasley, Ron's brother was attacked, his face scarred during the skirmish with Fenrir like as Fenrir bit Tyr's arm; like Fenrir's involvement with Odin's death, Fenrir was amongst the group who was involved in Dumbledore's murder; Deathly Hallows resolves the story. An interesting fact that was never mentioned in this movie is that Fenrir was the wolf who infected Remus Lupin.
  • (At around one hour and seventeen minutes) At the burrow, Tonks (Natalia Tena) calls Lupin (David Thewlis) "sweetheart". This suggests that they are already dating, but in the books, they do not get together until after Dumbledore's (Sir Michael Gambon's) death.
  • (At around two hours) When Harry (Daniel Radcliffe) has to force Dumbledore (Sir Michael Gambon) to drink the cursed water in the cave, Dumbledore can be heard saying "It's my fault! It's all my fault!" It is revealed in Harry Potter and the Deathly Hallows: Part 2 (2011) that Dumbledore's sister died from a stray curse while he and his brother and best friend were duelling; a psychological trauma, for which he has always blamed himself.
  • (At around twenty minutes) Arthur Bowen, who played Albus Severus Potter (Harry's son) in the epilogue of Harry Potter and the Deathly Hallows: Part 2 (2011), can be seen in this movie buying roasted chestnuts at a stand in Diagon Alley. At the time of writing, these two appearances are his only acting roles.
  • (At around thirty seconds) Robert Hardy (Cornelius Fudge) has an uncredited voice-over at the start of the movie: Immediately after Helena Bonham Carter's (Bellatrix Lestrange's) line, "I killed Sirius Black!" (from Harry Potter and the Order of the Phoenix (2007)), Hardy/Fudge's last line from the same movie: "He's back!" can be heard.
  • Madam Amelia Bones, from the Wizengamot during Harry's disciplinary trial in Harry Potter and the Order of the Phoenix (2007), who presided of clearing all charges to him, her portrait can be seen on a newspaper when Harry and Hermione are talking after the Christmas attack on the Weasleys by the Death Eater. She is head of Department of Magical Law Enforcement (usually where Minister of Magic is from previously) which is the strongest candidate after Fudge's post is vacant, but attacked by Lord Voldemort in her home as he sees her as a threat because she is known to be the greatest witch of her time and gave Voldemort a hard time killing her. She was the aunt of Susan Bones.
  • Ron, at one point in this movie, thinks Dumbledore is 150 years old. Dumbledore was 115 years old when he died. Plus, Dumbledore was roughly in his fifties when he first met Tom Riddle.
  • Draco Malfoy says on the train to Hogwarts that "I'd pitch myself off the Astronomy Tower", which is what happens to Dumbledore at the end of this movie.
  • Harry has a brief reaction to the ring, foreshadowing the fact that Harry is a Horcrux. This, and other subtle hints towards the events of "Harry Potter and the Deathly Hallows", are due to this being the first script written where the writers knew how the series ended.
  • Ron has no lines in the final scene, and sat a little apart from Harry and Hermione, foreshadowing how he'll temporarily walk out on them in Harry Potter and the Deathly Hallows: Part 1 (2010).
  • On an episode of The Simpsons (1989), Sideshow Bob (Kelsey Grammer) gives away the ending by stating that "this sum total is the greatest murder since Snape killed Dumbledore".
  • Dumbledore's death is a visual reference to the Tarot Card of the Tower, which is commonly associated with chaos and destruction and depicts a crowned figure falling from a tower, just like Dumbledore (headmaster of Hogwarts and leader of the good guys) falls from the Astronomy Tower here after being killed with a spell. The reference is even clearer in the novel, where Professor Trelawney mentions the "lightning-struck tower" (also a chapter title), which is another typical feature of this Tarot Card and may refer here to the flash of green light of the Avada Kedavra curse.
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