An amiable young outdoorsman decides to do a little mountain climbing (ALONE) and ends up with his arm trapped beneath a massive boulder. Based on actual events, this highly acclaimed drama offers equal doses of suspense, humor, and gruesome intensity. Plus, it features some of the most horrific, body-originating sounds you'll ever hear in a movie. You'll know what I mean when you hear it from behind your blanket.
Where to watch it: Rent on iTunes, Amazon Video, YouTube