I think the South Koreans make some of the best movies in the world (the west sure likes remaking them) check out a couple of new ones...'New World' and 'The Berlin File'. Kick ass 'gangsta' films are few and far between in the west so def check out 'New world' and 'The Berlin File' is kind of a foreign version of the 'Bourne' movies.
Also, if you plan on checking out Spike Lee's new film 'Oldboy' I highly recommend first seeing the original. Going to be very hard to top that imo.
All above mentioned movies available with English subs on the usual sites :)
