I was going to pick of the day this, but it's a little off the wall...
It's all about, not to put too fine a point on it, crazy people doing the most extreme sport-endurance type things you can imagine.
Like this guy, and this one:
I've only watched those two so far (The Human Spider Returns and The Human Bird), and they're amazing. They've gone to incredible lengths to get shots of these guys doing their thing, and both films follow them over two years to the culmination of one of their goals.
As you might expect, they're pretty strange people. They both reminded me of Phillipe Petit, the protagonist in last year's Man on Wire (below).
Curiously, though, they also reminded me of Sean Langan, the documentary film maker who was taken hostage by the Taliban last year. In so far as there is an essential tension at the heart of their character, between the life-risking work they love and their family/home life, the parallels are striking.
Note for Richard: you can now watch Langan's talk on a better player, though the start is still cut off.