Friday the 13th Part IV: The Final Chapter Movie Poster

Goofs from Friday the 13th Part IV: The Final Chapter

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  • (at around 32 mins) When Trisha's car breaks down the solenoid is cited as the cause. A solenoid controls voltage to the starter (which was working) and would not cause a vehicle's engine to stall.
  • (at around 1h 24 mins) When Tommy first looks at the machete on the ground, the handle is on the corner of the rug, but when he picks it up, it is not on the rug at all.
  • (at around 1h 7 mins) Doug's hair changes between shots when he is in the shower.
  • (at around 32 mins) When Rob meets Trish and Tommy at their car, he is carrying only a camping pack. Later, when he walks up the stairs, he is carrying a large duffle bag. Later still, when he leaves the house, he is carrying the camping pack and a short duffle bag.
  • (at around 1h 23 mins) Jason crushes a lamp on the floor and for an instant it becomes pitch black. A moment later, the room is lit again by a sudden occurrence of "moonlight."
  • (at around 8 mins) When the paramedics are rolling Jason, his feet are not facing them, but when they come into the room with Axel, Jason has switched positions.
  • (at around 19 mins) Pamela Voorhees' tombstone reads "1930-1979", but Friday the 13th (1980) shows her death taking place on Friday, June 13th, and June 13, 1979 was a Wednesday. (The year of her death should be 1980, as the first film was released in that year, and June 13th indeed fell on a Friday that year.)
  • On the cover of the 'Friday the 13th' case, the ax mark left from Friday the 13th Part III (1982) is located on the left side (looking at the case), while in that movie and this one, the mask mark is located on the opposite side.
  • (at around 15 mins) When Tommy is playing Zaxxon (1982) on his computer and talking to his mother, if you watch closely his ship is about to hit a force-field and he is going to die in the game. They cut away and a second later he is nowhere near the force-field with no chance of dying in the game.
  • (at around 1h 13 mins) When Gordon (the dog) jumps through the window, in one shot, he is breaking the glass, but in the next shot, he is moving through the window with no glass around him.
  • In Friday the 13th Part III (1982), Jason was stabbed in the leg and his hand, yet in 'Part IV' (which takes place the next day), there is no blood stain nor cut in his trousers or his leg, and no wound on his hand.
  • In Friday the 13th Part III (1982), Jason's fingernails were neat and trimmed, but in 'Part IV' (which takes place the very next day), they are long and black.
  • (at around 30 mins) When Sam and Sarah are talking on the pier, Sam's arms change positions between shots.
  • (at around 12 mins) Jason's arm falls off the table and onto the nurse. When she moves away, his arm is barely moved, but in the very next shot, his arm is a different position.
  • (at around 14 mins) When Trish and her mom are jogging, a bush in front of them moves before they run by it, caused by the cameraman brushing it as he walked backwards.
  • When Sara goes into the second floor bathroom to dry her hair, there is a bench in the hall. Later, when Jason chases Trish upstairs, the bench has moved across the hall.
  • (at around 24 mins) When Tommy Jarvis is pretending to sleep and his mother comes in, he is lying on his stomach. After she covers him up and closes the blind, he is lying on the back of his shoulder.
  • (at around 15 mins) Tommy isn't wearing glasses while he is playing his computer game, so it can be assumed that he needs them for distance. However, later that night, when he is watching Paul and Sam through the window (at around 24 mins), he doesn't have his glasses on but he can still see what is going on.
  • (at around 58 mins) As Trish waits in Rob's tent, the movie cuts back and forth repeatedly between a medium shot in which she is looking to her right, and a closeup in which she is looking to her left.
  • (at around 1h 18 mins) In the closer shots of Trish moving the shelves, there are some toys (most noticeably a reptilian action figure) that are not there in the longer shots.
  • (at around 1h 17 mins) When Trish shouts, "Tommy, hurry", the shelf to her right gets bumped by a crew member.
  • (at around 36 mins) When Jimmy is dancing to rock music, Paul walks over, changes the record, and then places a vinyl record on top of a box. In the next close-up shot, the vinyl record he placed down has gone.
  • Tommy's machete blow and him falling on it, cause the machete to slice halfway through Jason's head. But when Tommy picks up the machete, the back of Jason's head in completely intact.
  • The Jarvis' car stalls. Ron fixes it and says it was the starter. The car was already running and stalled out, which means that the issue could not have been the starter.
  • Friday the 13th Part 2 to 4 are set over one weekend, Yet Rob has time to find out his sister was murdered find out Jason did it and track him down.

Spoilers

  • (at around 1h 2 mins) When Jason throws Tina out of the window, the top view shot shows that the car is already dented and the glass is already shattered before she lands.
  • (at around 1h 21 mins) When Trish jumps out of the window and lands, you can see that she sinks into the ground (on presumably a crash mat), but in the next shot, she begins to stand on firm ground.
  • (at around 1h 18 mins) When Tommy and Trish hide from Jason in the former's room, Tommy grabs a chair which is in his hand, but in the next shot, it is suddenly firmly on the floor.
  • (at around 1h 21 mins) Right before Trish jumps out of the window, you can clearly see in the moonlight both of Ted White's perfectly normal eyes staring at her.
  • (at around 1h 10 mins) When Rob, Trish and Gordon go into the neighbors' house they enter through the front door. When Trish runs out (at around 1h 16 mins) she first opens the same front door but now Tina's body is in the way. Jason was supposedly in the basement the whole time. How did her body get there?
  • (at around 1h 21 mins) When Jason chases Trish to the neighbors' house, she jumps over Tina's body and stares at Jason. You can clearly see the red marks on the cheek part of the hockey mask, but when he chases her upstairs before she breaks out the window you can see the marks are gone.
  • (at around 43 mins) When Jason lunges out of the water and onto Sam, who is in the raft, his arm initially wraps his left arm over her entire body and grabs her right rib cage. The very next cut you see his left hand on her left shoulder, the should closest to him. This hand placement disregards that he made such an intense leap out of the water.
  • (at around 1h 19 mins) When Jason is trying to break into Tommy's room and trying to move the bookcase, he knocks several items off its shelves, including a yellow and orange dragon model which reappears on the shelf in the next shot.
  • (at around 19 mins) Amount of banana eaten by the hitch-hiker as Jason kills her.
  • (at around 1h 20 mins) When Trish picks up the TV, she accidentally knocks the lamp onto the ground. But when Trish and Tommy are coming out of the room after hitting Jason, you can see the lamp is standing up again in the background.
  • (at around 1h 2 mins) When Tina lands on the hood of the car after being thrown from the window, her shirt rides up far enough to reveal that we are looking at a (not anatomically correct) rubber dummy.
  • (at around 1h 24 mins) Trish swings the machete overhanded, but in the next shot she knocks Jason's mask off underhanded.
  • (at around 1h 24 mins) When Trish sneaks up behind Jason and swings the machete, the shot from behind her has her swinging it with both hands. But in the shot from in front of her, she's swinging it with one hand.
  • (at around 1h 1 min) When Jimmy is killed with the cleaver, you can see that the cleaver has the front cut out of it to accommodate his head.
  • In some shots of Jason, the eyebrows of actor Ted White can be seen through the eye holes of the hockey mask. Jason does not have eyebrows, as shown at the end of the film when his mask comes off.
  • Throughout this whole movie, Jason has long black fingernails and gray-colored skin on his hands. When Jason kills the hitch-hiker (at around 20 mins), he has normal-looking human hands. (Tom Savini stepped in and played Jason in this scene, but forgot to put make-up on his hands.)
  • (at around 1h 18 mins) When Jason throws the hammer at Trish after bursting through the door of the Jarvis home, you can see the safety guideline the hammer rode on to hit its mark. Furthermore, due to it being pulled by a line, the hammer hits the wall with its flat top instead of the claw or head but remains lodged there instead of bouncing off.
  • (at around 47 mins) In the shot where Jason is lifting Paul into the air with the spear-gun, you can see the two wires lifting Clyde Hayes into the air, even though the filmmakers tried to cover it up with fog.
  • When we see brief glimpses of Jason's mask when he kills Axel, Nurse Morgan, and Doug, the mask has the two red marks on either side of the nose, but in all scenes after Doug's death, the red marks disappear.
  • (at around 1h 21 mins) When Trish lands on the ground after jumping from a window, she causes a board to bounce up into the air; it lands first on another board and then on her arm, but both times makes a sharp "wood against wood" sound on impact.
  • (at around 1h 25 mins) After the machete has gone through Jason's head, he collapses and it is pushed further in by impact with the floor. Tommy then picks up the machete from where it is now lying on the floor, even though no one extracted it from Jason's head.
  • If Jason stabbed Sam through the bottom of the life raft, it should have been deflated or even sunken by the time Paul reached it.
  • When Jason attacks a nurse in the morgue, the camera's shadow can be seen.
  • When Jimmy goes into the kitchen, the counter is free of any cutlery, then he is stabbed in the hand with a corkscrew, and chopped in the face with a cleaver. Jason then picks up a bloody kitchen knife to go kill Teddy with.
  • (at around 1h 20 mins) As Jason breaks into Tommy's bedroom, a purple monster mask hanging in the room starts to spin, then stops a few shots later, then starts spinning again in the next shot.
  • (at around 1h 21 mins) When Trish jumps out of the window and lands, you can see the stunt woman is wearing a back pad and heavy hose.
  • (at around 1h 20 mins) After Trish electrocutes Jason with the television, he falls backwards, and the door to Tommy's room is left open. When Trish and Tommy walk over, the door is shut.
  • (at around 1h 2 mins) When Tina is thrown out of the window by Jason, you can see she is wearing soft body suiting on her legs as she hits the car.
  • (at around 1h 2 mins) When Tina is thrown out of the window, you can see the roof of the car is very flexible when she hits it.
  • (at around 1h 1 min) When Jimmy gets his hand pinned to the counter with a corkscrew by Jason, the counter is clear, but a few scenes later as Jason leaves the kitchen (at around 1h 4 mins), there's a pot holder laying on the counter.
  • (at around 14 mins) When Jason kills Nurse Morgan, her name tag is right next to her pocket, yet in every scene before that, it was on the opposite side of her uniform.
  • (at around 1h 17 mins) When Jason rips Jimmy's crucified body from the door, there is a close-up shot of Jimmy's hand. It looks and tears like rubber.
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