They're fucking awesome. The fighters leap from rooftop to rooftop, battle on tree tops and climb walls with ease. Much of the flying looks fake, they are clearly being lifted by wires. But, the actual fighting is, well, fuck, I can't think of great enough words without sounding like a quote whore. And somehow, I forgot about the fakeness of the flying.
Some people say it's like ballet, but that's bullshit.
If ballet were half this entertaining, and more people in the Nutcracker Suite got the crap beat out of them, I'd join Mrs. Filthy for a show. This is way fucking better. Fast, furious, beautiful and better than I have seen in any other movie. Yes, better even than Master of the Flying Guillotine . I found myself with clenched teeth during most of the fights.