Touching the Void

We watched the DVD of Joe Simpson's 'Touching the Void' last night (sitting on the floor of our office watching it on the computer!). Has anyone seen it or read the book? It is the most remarkable (true) story of human endurance I've ever heard. From the DVD cover:
"May 1985 - Peru. Joe Simpson and Simon Yates, ambitious young mountaineers, set off to scale the hitherto unclimbed West Face of Siula Grande, a remote and treacherous peak in the Peruvian Andes. Simpson and Yates reach the summit but shortly after starting the descent, an accident turns their daring expedition into a desperate fight for survival."
You don't have to be into mountaineering to 'get' this story. R's read the book and recommends it (I must read it myself) but the DVD was also very good.