The War with Grandpa

Synopsis

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 wants his room back - so he has no choice but to declare war.

Robert De Niro

Ed

Uma Thurman

Sally

Rob Riggle

Arthur

Oakes Fegley

Peter

Laura Marano

Mia

Cheech Marin

Danny

Jane Seymour

Diane

Christopher Walken

Jerry

Juliocesar Chavez

Billy

Isaac Kragten

Steve

T.J. McGibbon

Emma

Poppy Gagnon

Jennifer