There is an extended clip of some serious parkour action from the upcoming Luc Besson written and produced movie District 13 (Banlieue 13) available online today.

District 13 is an action film that combines that strange urban running thing called parkour with a plotline not unlike that of Escape from New York, and it is fair to say it looks great fun, although I've already heard comments that it doesn't include a strong story.

From the clip on Google Video, you can see what to expect from the action set pieces though, and it looks great entertainment.