Train Hard - Stay Humble
Brits are just... something else.
There's too much good stuff in this video to mention it all, but if you're in a rush skip to 32:40 and go till the end (but come back for the whole thing some other time!).
"This video provides an insight into some of the parkour training which we have been up to over the past few months. Filmed between December 2010, and April 2011, it features a number of the regular Manchester traceurs. The intention with this video, is to give a more realistic overview of real parkour training, and to highlight the fact that parkour should be open to everyone."