I think a lot of people don't realize that martial arts are just an expression like anything else. It's just that most people are not trained to punch or kick, but you can walk or run or dance, which is also part of expression.

When you direct a movie, you're basically looking at a story, the way you want to look at it. You bring that director's vision, and I'm totally open for that.

I don't make comparisons between any movies. I compare characters. All my actions, performances, all my films, they are driven by the characteristic. If I'm playing a cop, then I give him a particular style - I may not know that style, but as an actor I have to be responsible to do your homework and do your research and training and stuff like that.

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.

I act according to the requirements of the character, and if I try to play the role, then I play it truthfully. In my daily life, I'm a laid-back, peaceful guy. I'm just doing my job to act.

Look at every action movie in Hollywood. Every leading man from Spider-Man to Batman to James Bond, 'Bourne Identity', every one of them possesses martial arts skills.

It takes years of building that experience as a filmmaker, as well as physically. You have to have a high level understanding of martial arts.