How many times have you been watching an action movie when one of those chase scenes comes up that makes you think "yeah right!" as the hero miraculously leaps from rooftop to rooftop and hoists himself into a helicopter after dangling by just one pinky finger. Oh whatever, that is soooo unrealistic!

Or is it? Believe it or not there's an extreme sport that's been gaining in popularity, Parkour, that focuses on just those types of skills (okay, maybe not the 'dangling by a pinky finger' thing), but it's all about running, rolling, jumping, sliding, and even leaping from high buildings without getting hurt. It's the stuff of Hollywood chase scenes, in real life. And Parkour has actually been used in movies -- the opening of "Casino Royale" for one.

As it gains a name for itself there's even talk of Parkour being included in the Olympics! Now that would be fun to watch.