At our recent get-together I had mentioned an incredible fight scene in a Korean movie. I couldn't remember the name, though! The movie is called Oldboy - there's the original 2003 version and an updated 2013 version. I watched the original and was just blown away by it. Not just the fighting, but also the depth and darkness of the scenes.
Anyway, here's the fight scene I was talking about, where Dae-Su uses a hammer to dispatch a gang of bad guys in a hallway: http://youtu.be/IspheJGJiYI?t=3m18s. It's dark and gritty and seems a lot more realistic, what with people actually getting tired and stuff.
NOT SAFE FOR WORK