Who's seen it? It may be old news for some of you, but I only heard of it recently in Australia.
Without revealing anything, I found it to be one of the best movies i've seen in an exceedingly long time - it's spendidly twisted and some of the characters in it are very nice.
Anywho - I highly recommend it.
A note: It's subtitled, and it has some very realistic violence, so the squeamish or the illiterate may not want to watch