I like to stay within the context of the character's background. If he's a cop, I have to make sure the audience is convinced that this person, a cop, can do only so much without a gun.
Donnie YenIf you're playing a cop in a modern film, you don't have to walk with your spine straight up and bow before a fight. There's a lot of free form of expressing yourself as an actor.
Donnie Yen