Recommendation
If you, like me, do not speak Korean and find difficulty in distinguishing between Koreans and Japanese, this film, although great fun (once you start to understand what's going on) is difficult to follow (like this sentence, sorry!). I recommend that you read the Wikipedia entry for the film before watching it. It won't "spoil" much, but it'll help you to enjoy it more.
I'd rather have a bottle in front of me than a frontal lobotomy.