Michael: (talking about the qualities that make a good stunt) I am very demanding on my stunt people. I am very demanding on safety, but also for excelling in stunts and not making it feel like a stunt man is doing it. A good stunt coordinator knows a lot about physics. Physics is a way to help you understand what is going to happen in a stunt and also what can go wrong, because you've always got to think of the 'what if'. But you also need a stunt man who has cojones.