Summer Wars (2009) - Watch Full Movie Online | Moviea.me

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📅 2009 ⏱️ 114 min ⭐ 7.5/10 👥 1,013 votes

🎭 Animation, Science Fiction

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.

Summer Wars Official Trailer

Detailed Plot Summary

Story Analysis

This 114-minute Animation/Science Fiction takes viewers on an immersive journey through its narrative. The plot development showcases exceptional storytelling with carefully crafted character arcs and thematic depth.

Director

Mamoru Hosoda

Main Cast

Ryunosuke Kamiki as Kenji Koiso (voice)

Hitomi Miyauchi as Natsuki Shinohara (voice)

Mitsuki Tanimura as Kazuma Ikezawa (voice)

Sumiko Fuji as Sakae Jinnouchi (voice)

Ayumu Saito as Wabisuke Jinnouchi (voice)

Takahiro Yokokawa as Takashi Sakuma (voice)

Kiyomi Tanigawa as Yukiko Shinohara (voice)

Mutsumi Sasaki as Kazuo Shinohara (voice)

Mieko Nobusawa as Mariko Jinnouchi (voice)

Takuya Kirimoto as Riichi Jinnouchi (voice)

Sakiko Tamagawa as Rika Jinnouchi (voice)

Ichiro Nagai as Mansuke Jinnouchi (voice)

Takashi Kobayashi as Tasuke Jinnouchi (voice)

Yutaka Shimizu as Shota Jinnouchi (voice)

Kaori Yamagata as Naomi Miwa (voice)

Writers

Satoko Okudera

Producers

Nozomu Takahashi, Takuya Ito, Yuichiro Saito, Seiji Okuda, Takashi Watanabe

Production Information

Release Date: August 1, 2009

Box Office: $18.4 million

Runtime: 114 minutes

Original Language: JA

Production Companies: Madhouse, Nippon Television Network Corporation, KADOKAWA Shoten, D.N. Dream Partners, Warner Bros. Japan, Yomiuri Telecasting Corporation, VAP, Studio Chizu

Filming Locations: Japan

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User Reviews & Ratings

See what viewers are saying about Summer Wars. Real reviews from TMDB community members:

👤 CinemaSerf ⭐ 7/10

📅 August 6, 2025

It’s really quite apposite to watch this film at a time when governments across the world are merrily acquiescing to the demands of global tech to facilitate the rampant advance of AI. This story quite cleverly illustrates just how easily a collection of “Will Hunting” types can be used to crack even the most complex (2,000 digit) numeric code and allow nefarious access to a global network which manages just about everything we do - from using our phones to firing a nuclear missile. It’s bright ...

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