Well, you can't improvise story, which is a fact. If you could, the budget would be insane.

At around 19 I realized that I really didn't have any skills other than making people laugh, so I should probably pursue it full-time.

Eventually I got the call for 'Iron Man,' and I read sides that had nothing to do with what I did in the movie, and I performed it once while no one was in the room - it was videotaped, and I'm sure Shane Black was watching it from his helicopter or something. And then I got a call the next day that I was going down to shoot it.

I think where it's going is toward what the music industry is like, where channels will be considered more like labels that carry the type of TV show that you like, and then you'll consume them however you can. For example, I don't really watch Showtime, but I bought 'Homeland,' and I've been watching every episode on my iPad.

I am open to doing anything. I don't think in this day and age that, aside from two or three people, there isn't an actor who can just do one thing. I also think you can go back and forth between film and television pretty seamlessly.

Anytime I audition for something, it's always a question of whether or not the people I'm auditioning for understand I'm an improviser and I like to do that, and if they like that or if they just want someone who's going to do what's written.

America is never great. America is great in what it can be, which is the American dream.