Touching The Void.
Again.
A documentary about events in 1985, when Joe Simpson and Simon Yates made the first ascent of Siula Grande, and Joe had a terrible accident on the way down the mountain. Simon made a heroic, mad attempt to rescue Joe but in the end Joe was suspended by a rope, and Simon had to cut the rope and leave Joe for dead on the mountain.
I never get tired of this film. It's a harrowing testament to the power of human will, and the hunger for life. It's one of the most inspiring things I've ever seen. Good use of music, too. Good extras on the DVD.