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Original Language:English
Production Companies:Marro Films, EFO Films, Tri G, West Madison Entertainment
The War with Grandpa on the Web:Official Website
Movie Tags:duringcreditsstinger
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.