Touching the Void is another excellent and suspenseful documentary movie – the true story of two climbers and their perilous journey up the west face of Siula Grande in the Peruvian Andes in 1985. Apparently it was a book of the same name. It is much better than, say, 127 Hours, which I reviewed a while ago.
You can google it to find out more, but I watched in in 11 parts on YouTube.