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Movie

Summer Wars

Always protect your network.

2009 1hr : 54m Animation · Science Fiction ★ 7.5

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.

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Cast

Viewing guide

Is Summer Wars right for you?

Why it may be worth watching

  • Summer Wars combines Animation and Science Fiction elements in one feature.
  • The principal cast includes Ryunosuke Kamiki, Hitomi Miyauchi, Mitsuki Tanimura.
  • Viewers currently rate it 7.5/10 from 1,089 votes.

Who may enjoy it

Best suited to viewers looking for Animation, Science Fiction.

Content notes

A regional age classification is not currently listed. Metadata signals include violence or peril. Ratings vary by country; use this as a quick screening note rather than a complete parental guide.

Themes and topics
card gameartificial intelligence (a.i.)computerhackervirtual realityfamily holidayadult animationcybercrime

Viewing guidance uses the title details shown on this page; classifications may differ by region.

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Reviews

1
CinemaSerfExternal review · ★ 7.0/10

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 spark - but maybe just a touch inept - “Kenji” who has acce…

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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 spark - but maybe just a touch inept - “Kenji” who has accepted a task that is definitely not what he was expecting from “Natsuki” and so finds himself at her grandmother’s ninetieth birthday luncheon posing as her beau. A bit of a nervous wreck, he is later presented with an online puzzle by “OZ”, the network in question and he manages to message back a solution. Next thing we all know, it’s been hacked by an increasingly violent AI that is bent on a quest for knowledge and power, and that will stop at nothing. When poor old “Kenji” is identified and gets the blame, only an unique sort of intervention from granny and a solid series of team efforts from her family and from his friends might enable them to thwart this menacing creation. The animation starts off with images that reminded me of one of those childhood kaleidoscopes that brought vibrant crystalline shapes together, before heading full pelt into a frequently quite pithily comedic look at family traditions, teenage hormones and menacing nasties threatening the entire fabric of the internet. You’ll possibly never see a more potent cinematic demonstration of just how dependent and inter-dependant we are on this network of cables and zeroes and ones for much, if not most, of modern life. Not just our social lives, but our actual lives too are controlled and once control of that falls into malevolent hands, well humanity risks being well and truly stuffed. The last half hour focuses a little more on dealing with that problem, and the quickly paced action animation is underpinned by a plausible degree of science too. In many ways, it’s almost a horror movie - especially if you think on it: first love or online demons?

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Summer Wars trailer