"Whether it's one scene or 15 scenes in a film, whether it's the lead or a cameo part, if I don't find it interesting, I tend not to do it. You never really know what it is. It could be a one-scene part. I remember I read the one scene in Crash and was asked to do it. I was like, "Absolutely!" There's no formula for how something has to be. I always try to keep it that way."