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
Uma Thurman
Rob Riggle
Oakes Fegley
Laura Marano
Cheech Marin
Jane Seymour
Christopher Walken
Juliocesar Chavez
Isaac Kragten
T.J. McGibbon
Poppy Gagnon
Lydia Styslinger
Heather Johansen
Joe Gelchion
Colin Ford
Faizon Love
Rutanya Alda
Drew Scheid
Gage Lawson
Joshua Childs
Veronica Alicino
James Martin Kelly
Leon Lamar
Joe Foley
Loren Dennis
Jeremy Childs
Clayton English
Suehyla El-Attar
Joanie Stewart
Ted Huckabee
Larry Rippenkroeger