2009 · movie · PG · 1h 54m
Summer Wars
Always protect your network.
Is Summer Wars on Netflix?
No. Summer Wars (2009) is not on Netflix in the US right now. You can stream it on HBO Max.
Streaming availability by JustWatch.
Teenage math whiz Kenji Koiso agrees to take a summer job at the Nagano hometown of his crush, Natsuki. When he arrives, he finds that her family have reunited to celebrate the 90th birthday of their matriarch. His job: pretend to be Natsuki's fiancé. Meanwhile, his attempt to solve a mathematical equation causes a parallel world's collision with Earth.
Is Summer Wars on Netflix in other countries?
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Summer Wars trailer
How we got to 71.6
Critic and audience ratings set the number. Popularity, Top 10 position and recency can only lift it, never sink it. Full method.
| Signal | Value | Effect |
|---|---|---|
| TMDB | 7.5/10 | 100% of base score |
| Popularity | 30 | none |
Summer Wars: common questions
Is Summer Wars on Netflix?
No. Summer Wars (2009) is not on Netflix in the US right now. You can stream it on HBO Max.
Where can I watch Summer Wars?
Summer Wars (2009) is included with a HBO Max subscription in the US.
Is Summer Wars worth watching?
It scores 71.6/100 on our blended rating, which puts it in B-tier: worth it.
How long is Summer Wars?
Summer Wars runs 1h 54m (114 minutes).
What is Summer Wars rated?
Summer Wars is rated PG in the US.
Who is in Summer Wars?
Summer Wars stars Ryunosuke Kamiki, Hitomi Miyauchi, Mitsuki Tanimura, Sumiko Fuji.
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Availability last verified September 22, 2026. Ratings from TMDB. Streaming data from JustWatch via TMDB.