It takes great effort to make something look effortless.
On the set of a short film two hockey players were about to throw down and have a fist fight against the boards. I had rehearsed the fight with both actors a week before. They were both professional actors, able-bodied, and very good skaters. During one take, one actor threw an uppercut to the other actor, sending the second actor sprawling onto the ice. At that moment the crew let out a gasp. Suddenly the director called, "Cut!" after which she immediately called to the actor on the ice "Are you all right?" The actor got up without a problem and said, "Yeah, why?"
"We thought you were hurt.""No, I'm fine.""It looked so real.""That's because it's ...