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.
| Release Date | August 1, 2009 | |
|---|---|---|
| Status | Released | |
| Original Title | サマーウォーズ | |
| Runtime | 1h 54min | |
| Budget | — | |
| Revenue | $18,434,328 | |
| Language | Japanese | |
| Original Language | Japanese | |
| Production Countries | Japan | |
| Production Companies | MadhouseNippon Television Network CorporationKADOKAWA ShotenD.N. Dream PartnersWarner Bros. JapanYomiuri Telecasting CorporationVAPStudio Chizu | |