I can't remember watching too many Korean films, but I recently seen Save The Green Planet and that was very good. A Horror, SciFi, Comedy and not a black comedy either, there are very separate horror and comedy tones in that film that make it very different.
So anyway I just finished watching OldBoy, another Korean film and it is one of the greatest films I have ever seen. Korean cinema has certainly got my attention now. You must see this film, it is cinematic perfection.
5/5