Summer Wars (2009) movie poster
Seen it?

Summer Wars

Movie·2009·Animation, Science Fiction·1h 54m·7.5 (1,037)·Directed by Mamoru Hosoda

Streaming on (US) HBO Max Amazon ChannelYouTube TVSee all

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.

Castfull cast & details

Ryunosuke KamikiRyunosuke KamikiKenji Koiso (voice)Hitomi MiyauchiHitomi MiyauchiNatsuki Shinohara (voice)Mitsuki TanimuraMitsuki TanimuraKazuma Ikezawa (voice)Sumiko FujiSumiko FujiSakae Jinnouchi (voice)Ayumu SaitoAyumu SaitoWabisuke Jinnouchi (voice)Takahiro YokokawaTakahiro YokokawaTakashi Sakuma (voice)Kiyomi TanigawaKiyomi TanigawaYukiko Shinohara (voice)Mutsumi SasakiMutsumi SasakiKazuo Shinohara (voice)

Movies like Summer Wars all similar movies

The closest matches on shared genres, ranked by match strength and rating.

  1. 01Animation·Science Fiction·Action·AdventureSpider-Man: Into the Spider-Verse2018Streaming on NetflixStruggling to find his place in the world while juggling school and family, Brooklyn teenager Miles Morales is unexpectedly bitten by a radioactive spider and develops unfathomable powers just like the one and only…8.4
  2. 02Animation·Science Fiction·Action·AdventureSpider-Man: Across the Spider-Verse2023Streaming on Disney PlusAfter reuniting with Gwen Stacy, Brooklyn’s full-time, friendly neighborhood Spider-Man is catapulted across the Multiverse, where he encounters the Spider Society, a team of Spider-People charged with protecting the…8.3
  3. 03Animation·Science Fiction·Family·AdventureThe Wild Robot2024Streaming on Peacock PremiumAfter a shipwreck, an intelligent robot called Roz is stranded on an uninhabited island.8.3
  4. 04Animation·Science Fiction·Drama·FantasyNeon Genesis Evangelion: The End of Evangelion1997Streaming on NetflixSEELE orders an all-out attack on NERV, aiming to destroy the Evas before Gendo can advance his own plans for the Human Instrumentality Project.8.3
  5. 05Animation·Science Fiction·Adventure·ComedyHoppers2026Streaming on Disney PlusScientists have discovered how to 'hop' human consciousness into lifelike robotic animals, allowing people to communicate with animals as animals.8.2
  6. 06Animation·Science Fiction·FamilyWALL·E2008Streaming on Disney PlusAfter hundreds of years doing what he was built for, WALL•E— a robot designed to clean up the earth—discovers a new purpose in life when he meets a sleek search robot named EVE.8.1

Head-to-head all matchups

Summer Wars against its closest rivals — ratings, votes, runtime and where to stream, side by side.

Summer Wars vs Spider-Man: Into the Spider-VerseSide by sideSummer Wars vs Spider-Man: Across the Spider-VerseSide by sideSummer Wars vs The Wild RobotSide by side

Keep exploring top movies

MatchupCompare with another movie

Two films' ratings, runtimes and streaming, side by side.

GenreBest animation films & shows

The top of the animation pile, across both mediums.

GenreBest science fiction films & shows

The top of the science fiction pile, across both mediums.

PickerSpin a HBO Max Amazon Channel movie

Random great pick from the same service you already pay for.

Fandom hubThe anime hub

The whole fandom on one bookmarkable page — rankings, premieres, what's new.