To be totally candid, it was really born out of a panic attack the summer between my sophomore and junior years, when I realized I wasn't going to graduate in four years unless I somehow managed to glue together all the courses I'd taken. That said, I'm really glad I did it, 'cause it was really fun, and I was able to just take whatever the hell I wanted.

When we were not shooting [The Hangover] we were sleeping, so pretty much every waking moment we spent together. And, you know, Bradley [Cooper], Zach [Galifianakis] and I were acquaintances before the movie started but we became good friends very quickly and spent so much time together that it was just inevitable we were either going to really hate each other or really like each other. Thank god it turned out to be the latter.

I'm working on a script right about Civil War re-enactors who go back in time to the actual Civil War. It's kind of a big, crazy Back to the Future comedy. So, of course, it's the Civil War - I play the banjo. I was just having a conversation with one of the producers about some of the material and he was like, 'You know, we have to work in a scene where you play the banjo. And I was like I'll get behind that.

I think that music at inappropriate times with inappropriate volumes can be the funniest thing ever.

I worked as an assistant editor, actually, for a few years. That was right when I was just starting to get out at night and do a lot of stand-up, improv, and sketch work in New York. It really is invaluable. I think it pounded into me an awareness of what an editor wants and needs, in terms of clarity of a moment, where and when to start and stop a line.

You see a lot of sides of people on a movie set because it can be really taxing and to kind of go through all that together - you really get to know someone.

Let's just say it was damn hard [to make the Hangover]. I've got the bumps and bruises to show for it. It's funny because things that don't even look that bad on screen were still extremely painful.