Tekkonkinkreet (2006) - dir. Maikeru Ariasu
The screencaps above don’t really let you in on just how intense this film is going to be. Studio 4°C’s animation is the best you’ll ever see. And I mean the best. The story follows two orphans named Black and White who form a street gang against other orphans and gangs alike. Throw in some police officers (some of whom are crooked), the Yakuza, a new crime figure named Snake, and some mystical beast named simply the Minotaur and the whole film spirals out of hand pretty quickly.
Clearly adapted from a much longer manga, Tekkonkinkreet never really bothers to slow down, Ariasu never stops long enough to let you catch up and the film may not make the most sense that first time through - but oh lord is the journey back into Treasure Town ever worth it.
In my opinion - Tekkonkinkreet is the most underrated film out there.