The War with Grandpa is a heartwarming and hilarious movie about a young boy named Peter who declares war on his grandfather, Ed, after he moves into Peter's bedroom. Ed, a recent widower, is not interested in leaving his house, so Peter's mother convinces him to move in with her family. Peter is not happy about sharing his room with his grandfather and decides to fight back. The war between Peter and Ed escalates as they pull pranks on each other, but things take a turn when Ed starts spending time with his granddaughters and learns how to use modern technology. Despite their differences, Ed and Peter eventually form a bond and learn to appreciate each other's company. The movie features an all-star cast, including Robert De Niro as Ed, Uma Thurman as Sally, and Oakes Fegley as Peter. With its lighthearted humor and touching moments, The War with Grandpa is a delightful film that the whole family can enjoy.

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Some movies that have similar genres and were produced around the same time as The War with Grandpa include Wonka, Kung Fu Panda 4, Migration, Leo, Spider-Man: Across the Spider-Verse, Wish.

The War with Grandpa was released in theaters on October 9, 2020.

The War with Grandpa was released for streaming on December 22, 2020.