I think reviewers have become particularly venomous because, in a way, the power has been sucked from them. A 15-year-old can write a review on the Internet and it means as much as Roger Ebert's review, and that just makes Roger Ebert mad, so he comes out harder and stronger.

I think comedy directors tend to feel a need to justify the bad behavior, and I just never think that. I like bad behavior, I've always liked bad behavior, I'm a fan of bad behavior, and I don't think you have to justify bad behavior.

I make decisions to do movies based on the cast. I'd just been working with Zach Galifianakis on 'The Hangover', and I was thinking, I've got to find something to do with this guy immediately.

I take it very seriously, music. I think it's one of the tools that a director has with which to kind of paint. The right music can sometimes do five pages of scripted dialogue.

I'm not worried about young people seeing an opportunity and taking advantage of it.

When you work on a movie or a TV show, you're a family, so if something that's a two-minute thing in the movie is causing a rift in the family, you also have to think about at what point do you fight this, and at what point is this rift worth having in this very small, very tight group of people who are just there to make something great and funny.

You're never nice to your friends. You're nice to people you don't like!