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The War with Grandpa

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Videos & Photos

  • Official Trailer
  • Trailer 1

Movie Info & Cast


Sixth-grader Peter (Oakes Fegley) is pretty much your average kid-he likes gaming, hanging with his friends and his beloved pair of Air Jordans. But when his recently widowed grandfather Ed (Robert De Niro) moves in with Peter's family, the boy is forced to give up his most prized possession of all, his bedroom. Unwilling to let such an injustice stand, Peter devises a series of increasingly elaborate pranks to drive out the interloper, but Grandpa Ed won't go without a fight. Soon, the friendly combatants are engaged in an all-out war with side-splitting consequences. Based on the award-winning book by Robert Kimmel Smith, The War with Grandpa is a hilarious family comedy featuring an all-star supporting cast: Christopher Walken, Uma Thurman, Rob Riggle, Cheech Marin, Laura Marano and Jane Seymour.


  • Robert De Niro
  • Uma Thurman
  • Rob Riggle
  • Oakes Fegley
  • Cheech Marin
  • Jane Seymour
  • Christopher Walken
  • Laura Marano
  • Colin Ford
  • T.J. McGibbon

Atom User Reviews

Verified Review

I bought this movie by mistake and didn’t get my refund lol

Marco H
Verified Review

It was just okay.

David R


Oct 11, 2020

Despite the efforts of an A-list cast led by Robert De Niro, this so-called family entertainment is barely passable piffle.

Peter Travers
ABC News
Oct 9, 2020

There are some random chuckles along the way . . . . For the most part, though, The War with Grandpa seems like the sort of brightly-lit disposable family comedy that fills the Disney Channel schedule, only with an insanely overqualified cast.

Metacritic review by Alonso Duralde
Alonso Duralde
Oct 8, 2020

The War with Grandpa will probably prove riotously funny to small fry while providing some compensations to adults with its supremely overqualified cast.

Metacritic review by Frank Scheck
Frank Scheck
The Hollywood Reporter