127 Hours is a heart-stopping, against-the-odds drama with a nail-biting score and an incredible performance by James Franco. Aron Ralston, the trapped mountaineer spent a long of time trying to understand what was this vision he saw during his ordeal. Was it a religious vision, Was it related to his dehydration or was it a medically explicable epiphany which arises just before your about to die that tells your DNA tells you have to continue the human race, you have to get out, have children and keep the species going? This is what kept him alive and pushed him to escape the traumatic situation. Switch The Shift looks back at some memorable survival films.