Seth Green: Doing three movies with Mike Myers certainly loosened me up. He told me that there's a switch in your brain that censors you, makes you second- guess. You have to turn it off, shut out the fear of being embarrassed and making a mistake. Being a good improvisational actor is all about being in the scene, getting out of your head. Conan O'Brien is my favorite interviewer because he pays attention and has no game plan.