sherloques:

Captain America: The First Avenger Audio Commentary:

“This is the moment that Chris Evans worked out for for several months. Before we shot that scene he dropped to the floor and must have done about 50 push-ups in what seemed like about 9 seconds. It was pretty amazing to watch. The best thing about that is that shot is not enhanced, it’s just him. That’s how he actually looked in every skinny Steve shot. ”