With action in Hollywood, a choreographer will be hired to design an amazing fight, with all these cool little narrative bits, such as a fighter having to perform a certain move because he's been injured and can only move that way, but it can all get lost in translation because the director then does what he wants with it and then passes it on to the editor, who does his interpretation of the fight. It becomes almost like Chinese whispers, so sometimes the end fight you see on film is so different to how it was conceived and looked on the day.