The War with Grandpa

Where to Watch The War with Grandpa (2020) (Legally)

Old school vs new cool.
Aug 27, 2020 US 98 min PG
6.4 ★ ★ ★ ★ ★
1 058 votes
Where can I watch “The War with Grandpa” legally?
We don’t host streams or downloads. Below are legal provider hints for the US region first, with a fallback for other English-speaking regions if available.

US providers

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English-region fallback

Found availability signals for: GB

Where to watch “The War with Grandpa” (2020) legally online? See US options first, with English-region fallbacks.

What to expect (spoiler-free)

Planning a movie night? This is a spoiler-free snapshot of “ (2020).

It sits in the Comedy, Family space and is paced for about 98 minutes.

Audience signals on TMDB currently show an average rating of 6.4/10 from about 1,058 votes.

The listed certification for some regions is “ (ratings vary by country).

Topics & keywords

friendship, birthday, grandfather, teenage girl, family, family conflict, attic, changing room, resentment, duringcreditsstinger

Official trailer

Watch the official trailer on YouTube

Plot

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.

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Gallery

Still from the movie The War with Grandpa Still from the movie The War with Grandpa Still from the movie The War with Grandpa Still from the movie The War with Grandpa Still from the movie The War with Grandpa

FAQs

Where can I watch it legally?
We only share legal viewing options. Check the “Where to watch” box above for your region and verify on official listings.
Is it available for free?
Free availability depends on region, promotions, or ad-supported services. Always verify on legal providers—availability changes frequently.

Main cast