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Summer Wars (2009)

7.5 IMDb 81% RT 63/100 MC
IMDb Trailer

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.

Best Release

GKIDS · 4K + Blu-ray

A-Tier

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Upcoming Release
Announced

Label

Anime Limited

Edition

Limited Edition Steelbook

Street Date

TBA

Director

Mamoru Hosoda

Box Office

$326,033

Editor's Notes

Note

GKIDS A-Tier 4K. Mamoru Hosoda's animated film about a virtual world gone haywire. The steelbook-only release from Shout Factory follows a frustrating pattern for anime 4K titles where standard editions don't exist, but the artwork is excellent. Hosoda fans are hoping this leads to steelbooks for the rest of his catalog.

noted Apr 9, 2026

Mentions

Summer Wars 4K Steelbook up at Amazon $36.98 4/1/25 26 Is Amazon getting better? 21 Any 4k anime collectors? 14 What's up with Shout Factory and doing Steelbook-only releases for Mamoru Hosoda's films? 3

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