You are watching The War with Grandpa the movie produced in United States of America belongs with duration 98 Min in Category Comedy,Family,. broadcast at streamingjoy.com , by [ Marro Films ] ,[ EFO Films ] 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..