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Plot
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.
Trailer
Cast
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Robert De Niro
Ed
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Uma Thurman
Sally
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Rob Riggle
Arthur
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Oakes Fegley
Peter
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Laura Marano
Mia
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Cheech Marin
Danny
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Jane Seymour
Diane
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Christopher Walken
Jerry
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Juliocesar Chavez
Billy
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Isaac Kragten
Steve
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T.J. McGibbon
Emma
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Poppy Gagnon
Jennifer
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Lydia Styslinger
Lisa
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Heather Johansen
Young Mom
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Joe Gelchion
Chuck
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Colin Ford
Russell
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Faizon Love
Store Manager
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Rutanya Alda
Lynn Marino
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Drew Scheid
Eighth Grade Monster
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Gage Lawson
Teen at School
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Joshua Childs
EMT #2
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Veronica Alicino
Nurse Alice
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James Martin Kelly
Carl
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Leon Lamar
Boat Rental Guy
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Joe Foley
Boat Ranger
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Loren Dennis
Kayak Guy
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Jeremy Childs
EMT
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Clayton English
Referee
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Suehyla El-Attar Young
Teacher
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Joanie Stewart
Carla
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Ted Huckabee
Mechanic
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Larry Rippenkroeger
Motorcycle Cop