By now, everyone knows the story of Aron Ralston, the mountain-climbing Bro who fell down a crevasse several years, got his arm stuck under a boulder, and five days later used a (gulp) dull knife to amputate his own arm in order to escape and save his life. Director Danny Boyle ("Slumdog Millionaire," "Trainspotting") has turned Ralston's story into a new movie, "127 Hours," starring James Franco. It opens Nov. 5 in limited release, and it has Oscar written all over it. Here's the trailer: