I saw this at the Cannes festival a couple of years back and really liked it. I watched it back to back with Jam Films with is out now but there's no sign of a DVD of this title at all. It concerns a strange sport (I'm not sure if it's even real or not) apparently played in Japanese schools but facing a ban due to the high levels of injury. A group of kids build a team for the last tournament they will ever be allowed to play (only allowed at all because of some underhand dealings with a teacher) in a plot that resembles (but only in framework) many American high school sport movies.
It is funny as hell and occasionally quite moving.