How long is The War with Grandpa?

The War with Grandpa is 1 h 38 min long (98 minutes). If you start it at 8:00 pm it ends at 9:38 pm; add about 20 minutes if you watch trailers first.

What is The War with Grandpa rated?

The War with Grandpa is rated PG in the US.

Where can I stream The War with Grandpa?

As of 2026-11-08 it is not streaming on a subscription or free service in the US; it can be rented or bought on Amazon Video, Apple TV Store, Google Play Movies. Availability changes often; this page loads the live list for your country (streaming availability by JustWatch).

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Where to watch The War with Grandpa (2020) tonight

The War with Grandpa (2020) runs 1 h 38 min, is rated PG in the US and averages 6.4 from 1,112 TMDB members. 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.

Runtime: 1 h 38 min — ends 9:38 pm if you start at 8:00 pm
Rated: PG (US)
Genres: Comedy, Family
Released: August 27, 2020
TMDB rating: 6.4 / 10 from 1,112 votes
Director: Tim Hill
Starring: Robert De Niro, Uma Thurman, Rob Riggle, Oakes Fegley
Language: English

Good for a group? Yes — a crowd movie.Comedy and Family hold a room: people can talk, laugh or scream over it and still follow what is going on.

Where to watch it tonight

Availability loads live for your country. See where The War with Grandpa streams (JustWatch via TMDB) →

Streaming availability by JustWatch. As of 2026-11-08 it is not streaming on a subscription or free service in the US; it can be rented or bought on Amazon Video, Apple TV Store, Google Play Movies.

Questions people ask

How long is The War with Grandpa?: The War with Grandpa is 1 h 38 min long (98 minutes). If you start it at 8:00 pm it ends at 9:38 pm; add about 20 minutes if you watch trailers first.
What is The War with Grandpa rated?: The War with Grandpa is rated PG in the US.
Is The War with Grandpa a good movie to watch with a group?: Yes — a crowd movie. Comedy and Family hold a room: people can talk, laugh or scream over it and still follow what is going on.
Where can I stream The War with Grandpa?: As of 2026-11-08 it is not streaming on a subscription or free service in the US; it can be rented or bought on Amazon Video, Apple TV Store, Google Play Movies. Availability changes often; this page loads the live list for your country (streaming availability by JustWatch).

Lists it could be on

If you like The War with Grandpa

The War with Grandpa on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.

Lights Down is a free tool: tell it your streaming services and how long you have, and it ranks what you can stream tonight, with a this-or-that, a roll, a bracket and a wheel. Movie data from TMDB; streaming availability by JustWatch. Page updated 2026-11-08. This product uses the TMDB API but is not endorsed or certified by TMDB. Lights Down is a Somebody Decide program. How the data works · Legal & privacy · Tonight's lists