Battle Royale is the sort of film only the Japanese would make, and even then it's only to make sure we all know they're sicker than the "Ilsa - She Wolf of the SS" producing Germans (actually I think it was American, but work with me here).
I'm not sure what sick bastard sat around and thought up a film where 42 14-year-olds butcher each other on a deserted island in some zany government program but I've got the sneaking suspicion that they're probably in charge of childrens programming on Tokyo TV or something. It's not that bad a movie really, there's some rather entertaining moments in it (especially the introduction video the kiddies have to watch) and some tremendous brutality for those of you who enjoy that sort of thing, but it's not exactly required viewing. Bizarrely enough there's a running countdown of how many of the little dears are still alive - it looks like one of those jolly Japanese horse racing games you download and attempt to play despite a complete lack of understanding of the language.
That said I'd watch the sequel which has apparently been made - even if it does seem reminscent of that rotten Rutger Hauer film "Wedlock", a movie so bad it features a walk-on part by Warwick Capper.
IMDB should give me a fat cheque for all the links to them I've done in this post.