Because stunts are obviously very dangerous, they're very expensive, and there are a lot of stunt scenes that you cannot do, obviously, because you can't really allow the stuntman to be seriously hurt.
위험한 일을 하다보니 매우 비싼데다가 스턴트맨이 할 수 없는 많은 장면들도 많이 있어 다치게 할수 는 없으니 고민이라더군요