Movie guide
Summer Wars (2009): movie guide
Summer Wars (2009) is a Animation, Science Fiction running about 114 minutes. It holds a TMDB score of 7.5/10 from 1,091 votes. Notable cast includes Ryunosuke Kamiki, Hitomi Miyauchi, Mitsuki Tanimura, Sumiko Fuji. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 2009-08-01
- Runtime: 114 min
- TMDB: 7.5/10
- Genres: Animation, Science Fiction
Last updated: 2026-11-11 · First listed: 2009-08-01
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What is Summer Wars about?
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.
Cast highlights
Summer Wars features Ryunosuke Kamiki, Hitomi Miyauchi, Mitsuki Tanimura, Sumiko Fuji, Ayumu Saito, Takahiro Yokokawa. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 2009-08-01. Runtime: 114 minutes. TMDB score: 7.5/10 (1,091 votes). Genres: Animation, Science Fiction. Original language: ja. Status: Released.
Discover Summer Wars on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse Summer Wars, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is Summer Wars?
- Summer Wars is listed as Animation, Science Fiction on TMDB.
- How long is Summer Wars?
- Summer Wars runs about 114 minutes.
- Who stars in Summer Wars?
- Cast highlights include Ryunosuke Kamiki, Hitomi Miyauchi, Mitsuki Tanimura, Sumiko Fuji, Ayumu Saito, Takahiro Yokokawa.
- Does Cinema Box stream Summer Wars?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
- Where can I track Summer Wars?
- Open the Summer Wars page on cinemabox.app or install the official Cinema Box Android app from Google Play for watchlists and discovery tools.
