I just watched The Villainess and I honestly cannot remember more fun I've had with a Korean film. I don't watch enough Korean films, despite many actually appealing to me very much (I had The Villainess on my PC for 6 months!), so it shouldn't be a long list (I hope to frequently add to it).

Here are my favourite Korean films:

1. The Villainess A-
2. The Host B+
3. Oldboy B+
4. 3-Iron B
5. Snowpiercer C

That is a pathetic list. I should've watched many more. Films on the wish list: The Good, The Bad, and the Weird, The Handmaiden, Train to Busan, I Saw the Devil, Lady Vengeance, The Wailing.