One of the biggest breaks we had actually, one of the biggest, the hardest I laughed on the movie [The Hangover] was the baby was just doing ridiculous things and making hilarious faces. But I'm sitting there and I'm supposed to be having this exchange with Zach [ Galifianakis] and the baby is like staring at me with these huge eyes and acting, and just making the most cerebral faces, and I could not keep it together.

As much as you do get beat-up doing even small action sequences, it's incredibly fun.

When you try hard at everything you do, even when it feels foolish to do so, you’re opening up doors and possibilities you might not be seeing in the moment.

The Daily Show was an incredible training ground for that kind of thing. It was all about discipline and generating material constantly.

No one employed [ chaos] better than Jim Henson, by the way, on The Muppets. He had all these chicken Muppets that just brought in the most glorious chaos to whatever scene they were a part of.

I didn't mention the tooth thing to anyone until it became clear that...we started to discuss just taking it out of the movie [The Hangover] because we couldn't find anything that worked and they couldn't afford to do a full like digital effect. So that's when I called my dentist and it worked out.

As an actor, you can really play the intensity and gravity and seriousness of the moment, and just rely on the circumstances being funny. The joke is kind of the situation you're in, or the way you're reacting to something, as opposed to the characters just saying something witty.