I was recommended to watch a film called "Aachi And Ssipak" by a friend. (He thought I'd know cause I'm Korean..)
It's made in 2006. The original script came from flash animation. (It was really popular in early 2000s)
The film is pretty disgusting, brutal and funny. The entire movie is full of actions. Worth watching IMO
After watching this movie, my curiosity about Koreans not jumping into anime industry got larger. I don't know why they're into webtoons, drama, but not animations.
Korean people used to work for Japan and Disney copying those motion flow frames. (Long time ago)