I think it's important when you're acting to be as relaxed as possible even if you're doing something intense. You're basically in a state of dynamic relaxation.
Christian BaleDieter Dengler was an amazing man. Who knows what he would've been had he not ever been tested in this way? It's a question that I certainly have myself. What would I be able to do in certain situations? He came out, obviously, looking like a true hero, but he didn't go in looking like that. He was not your typical image of somebody that you would think would be the tough guy who was able to endure. His lighthearted attitude, this sort of dorkiness, and naivete; it ended up being the finest tool for his survival.
Christian Bale