The War with Grandpa
“Old school vs new cool.”
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 in United States
Amazon Video
Apple TV Store
Google Play Movies
YouTube
Fandango At HomeClick a service to open The War with Grandpa there. Availability last verified on June 20, 2026.
Where is The War with Grandpa streaming around the world?
| Country | Streaming on | Rent / Buy |
|---|---|---|
| United States | — | Amazon Video, Apple TV Store, Google Play Movies |
| India | Amazon Prime Video, Amazon Prime Video with Ads | Apple TV Store, Google Play Movies, YouTube |
| United Kingdom | — | Rakuten TV, Amazon Video, Google Play Movies |
| Canada | Amazon Prime Video, Starz Amazon Channel, Amazon Prime Video with Ads, Hoopla | Apple TV Store, Google Play Movies, CosmoGo |
| Australia | Amazon Prime Video, BINGE, Foxtel Now, Amazon Prime Video with Ads | Apple TV Store, Amazon Video, Google Play Movies |
| Germany | Joyn Plus, Filmlegenden Amazon Channel, ARD Plus, ARD Plus Apple TV channel | Apple TV Store, Amazon Video, Google Play Movies |
| France | Molotov TV | Apple TV Store, Google Play Movies, Canal VOD |
| Spain | — | Apple TV Store, Google Play Movies, Amazon Video |
| Brazil | Amazon Prime Video, Amazon Prime Video with Ads | Claro video, Apple TV Store, Amazon Video |
| Japan | — | Amazon Video, Apple TV Store, Google Play Movies |
About The War with Grandpa
The War with Grandpa is a 2020 English-language comedy and family film directed by Tim Hill. The cast is led by Robert De Niro, Uma Thurman, Rob Riggle. It has a runtime of 1h 38m. Viewers rate it 6.4/10 across 1100 ratings. In United States, it is available to rent or buy on Amazon Video and Apple TV Store.
The War with Grandpa was produced by Marro Films, EFO Films, and Tri G and made in United States of America. It was released on August 27, 2020, and carries a PG certification. Made on a budget of about $18 million, it went on to gross $43 million worldwide.
- Director
- Tim Hill
- Writers
- Matt Ember, Tom J. Astle
- Release date
- August 27, 2020
- Original language
- English
- Age rating
- PG
- Status
- Released
- Country
- United States of America
- Budget
- $18 million
- Box office
- $43 million
- Production
- Marro Films, EFO Films, Tri G
The War with Grandpa cast & crew
The War with Grandpa was directed by Tim Hill and written by Matt Ember and Tom J. Astle.
The cast features Robert De Niro as Ed, Uma Thurman as Sally, Rob Riggle as Arthur, Oakes Fegley as Peter, Laura Marano as Mia, and Cheech Marin as Danny.
Behind the camera, the score was composed by Christopher Lennertz, cinematography is by Greg Gardiner, and it was produced by Randall Emmett and Sonny Schwartz.
Is The War with Grandpa worth watching?
The War with Grandpa holds an audience score of 6.4/10 from 1,064 ratings, a solidly received comedy films.
At 1h 38m, it's an easy, time-light watch.
If you enjoy comedy and family, The War with Grandpa is worth a place on your watchlist.
How and where to watch The War with Grandpa
The War with Grandpa isn't on a subscription service in United States right now, but you can rent or buy it on Amazon Video, Apple TV Store, Google Play Movies, and YouTube.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
Rate & review
Your rating and review are saved privately in this browser — no account needed.
Cast of The War with Grandpa
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
Juliocesar Chavez
Billy
Isaac Kragten
Steve
T.J. McGibbon
Emma
Poppy Gagnon
Jennifer
The War with Grandpa — FAQs
▸Where can I watch The War with Grandpa in United States?
The War with Grandpa is not on subscription streaming in United States right now, but you can rent or buy it on Amazon Video and Apple TV Store and Google Play Movies.
▸What language is The War with Grandpa in?
The War with Grandpa is originally in English. Subtitle and dub options vary by streaming service.
▸How long is The War with Grandpa?
The War with Grandpa runs 1 hours 38 minutes (98 minutes).
▸What is The War with Grandpa rated?
The War with Grandpa is rated PG. It holds a 6.4/10 audience score from 1,064 ratings.
More like The War with Grandpa
