My entire life, I've always known that I wanted to be a performer, but I didn't know exactly how, where or when. I never learned or studied the craft, formally. I grew up doing martial arts and playing piano. But, something inside of me always said that I was going to do this, as far back as I can remember.

I want to play roles that I'm proud of, that I feel a certain integrity about, and I want to continue to be truthful in the work that I do.

Miracle at St. Anna.' I was challenged by Spike Lee. When he offered me the film, he looked me square in the eye and said, 'You start this film off and you end this film. I don't want a dry eye in the theatre. Can you pull that off?' He was dead serious.

I think the biggest lesson that I take from 'Avatar' on any set that I go to is just work ethic. Working with Jim Cameron, you're used to working very, very long days and you're very meticulous about details. He's very, very picky about little details, little character-isms and things.

My entire life, I've always known that I wanted to be a performer, but I didn't know exactly how, where or when. I never learned or studied the craft, formally. I grew up doing martial arts and playing piano. But, something inside of me always said that I was going to do this, as far back as I can remember.

There was a day where I was sitting at my desk, working 90-hour work weeks, in a suit, looking at a computer, with all these pitch books on my desk, and I just thought, "This can't be my life..."

I'm a martial artist. I've boxed all my life. I work out. I studied Hwarangdo, which is a Korean style.