I guess I'm pretty lucky because in childhood I studied so many martial arts styles and I never stopped researching them, my body is very adjustable and I can turn into different expressions with my body.

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.

Martial art is a form of expression, an expression from your inner self to your hands and legs.

When audiences look at an action actor like myself, sometimes we are very easily stereotyped or characterized as one type. They forget that we are actors, too.

There's a lot of thinking when you choreograph something. You're not just choreographing some bodies, arms, legs flying around to look cool. It's a lot more complicated and sophisticated. You also have to deal with the connection of the whole film, so when I choreograph, I think of the movement itself, the camera angles, the characters.

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.

My action follows my characters. If a character is a cop, you cannot be posing all the time, you cannot fly off the roof because it doesn't make any sense - it's not practical.