The War with Grandpa

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
• 
  Isaac Kragten

  Steve
• 
  T.J. McGibbon

  Emma