Some guy does a stunt on a catwalk leaving a big hole. Next out comes a model. Hilarity ensues.
Two observations: (1) not the best video taping going on there, and (2) I suspect the model's legs are worth a fortune to her - I'm stunned they weren't shredded by the fall.
Edit: Someone has already called it "fake." Man, I don't think so. Plus, TMZ believes it is real, so it has to be.