You don't really look like a tough guy. Why do you think you were picked for the job?
(Original director Doug Liman) thought that it was really daring to cast me as this guy because of the way that I look. I look so young. ... So, Doug would come up with certain things. He watched boxing on television and he liked the way that boxers walked.
What did you do to mimic that?
I boxed for about six months before the movie and that really did help. ... The sum total of a lot of those little subtleties add up into making something believable or not.
Why is Jason Bourne considered an anti-hero?
If you take responsibility for your own actions, the most important thing that you do to rejoin the human race is to start by atoning for the things that you've done. To take someone who we've established as an American, the ultimate American machine, weapon, whatever, that's the realization that he comes to. In the end, it's very powerful.
Are you and Good Will Hunting pal Ben Affleck working on anything new?
I saw him last night and (writing) is something that we talk about every time we see each other. We want to do it, but it's just a matter of handling the logistics and figuring out a way to get us in the same place at the same time.
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I haven't seen it. And I don't know, some people have said it's funny. Some people have said it's kind of a knock or whatever. I just figure it's an extension of Project Greenlight. It's a chance to get people a job. (Laughs)