The War with Grandpa (2020)

Cast: Robert De Niro, Uma Thurman, Rob Riggle, Oakes Fegley, Laura Marano, Cheech Marin, Jane Seymour, Christopher Walken, Juliocesar Chavez, Isaac Kragten

Peter is thrilled that his Grandpa is coming to live with his family. That is, until Grandpa moves into Peter's room, forcing him upstairs into the creepy attic. And though he loves his Grandpa, he wa…