Warning! These scenes contain violence and adult content. View at your own risk.
If you're into South Korean revenge movies in the vein of Old Boy, then you should check out The Man from Nowhere. Quick synopsis: Guy with gender neutral haircut kicks the shit out of bad guys. The fight/action scenes are really well done and aren't overly martial artsy. There are a lot of great scenes in the movie, and maybe I'll post them in the future, but I picked this one because, well, you can't go wrong with a bathroom fight scene.