The Sky Crawlers is a 2008 Japanese anime film, directed by Mamoru Oshii and an adaptation of Hiroshi Mori's novel of the same name. It is a melancholy take on war and those who fight it, but with several significant twists. For one, the world is at peace; it's companies doing the fighting, in order to sate the people's taste for war so that actual conflict does not take place. To fight their endless battles they use Artificial Humans called Kildren that are stuck in a perpetual adolescence of forgotten memories.