"The way I do this, is I oversee all her physical training and nutrition. I'm with my actress all the time. Even when they do their stunt work, I'm there. I'm not going to teach her climbing — obviously, we are going to get the best climber we have [to do that.] I was overseeing everything, making sure she didn't overwork herself or get injured. The stunt coordinator and the stunt team was amazing. They did their thing. They taught her all of the fights and everything. I had nothing to do with that, but I was still there to oversee it... It was for safety, and to make sure her body wasn't put under too much physical stress."