The War with Grandpa (2020)
Movie 1h 38m ★ 6.4/10
Good for tonight if you want to: make me laugh, family night
Released in 2020, The War with Grandpa is a comedy and family movie. It is directed by Tim Hill. The cast includes Oakes Fegley, Robert De Niro and Christopher Walken. The running time is 1h 38m. Audiences give it a decent score of 6.4 out of 10.
Synopsis
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.
Where to watch The War with Grandpa
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Cast & crew
- Tim HillDirector
- Oakes Fegleyas Peter
- Robert De Niroas Ed
- Christopher Walkenas Jerry
- Uma Thurmanas Sally
- Cheech Marinas Danny
- Jane Seymouras Diane
- Rob Riggleas Arthur
- Laura Maranoas Mia
Data from TMDB. Page last updated 4 Oct 2026. Download share image
Questions about The War with Grandpa
- What genre is The War with Grandpa?
- The War with Grandpa is categorised as Comedy, Family.
- Who stars in The War with Grandpa?
- Oakes Fegley, Robert De Niro, Christopher Walken, Uma Thurman, Cheech Marin appear in the main cast.
- Who directed The War with Grandpa?
- Tim Hill directed The War with Grandpa.
- How long is The War with Grandpa?
- The War with Grandpa runs for 1h 38m (98 minutes).
- Is The War with Grandpa worth watching?
- It holds an audience score of 6.4/10. Check the similar titles below if you want alternatives in the same style.
- Where can I watch The War with Grandpa?
- Availability changes by country and over time. Use the "Where to watch" links on this page to see which legal streaming, rental or purchase services currently offer it.
