It's incredible how big a part of my acting career music has become. I get asked about it all the time, and I love it. It's one of my favorite things, and I'm so glad that I get to sort of work that in.

What's cool is that in the story of the movie [The Hangover] our characters are also really kind of getting to know each other and bonding over the course of the movie. And I think you're seeing a real, a literal sort of friendship growing both in us as actors and on screen as characters.

You take a vacation to a place like Thailand and you're ready for the excitement of something new and foreign. But when you're working 14-hour days, all you want is something familiar to ground you. And there's just nothing there.

We did some camera tests blacking it out, we made a prosthetic with a gap in it, but that made me look like a donkey, so I vetoed that right away. And then I just finally called my dentist and said, 'You know, I've had this implant for 20 years. What's it involve in taking it out?' And he said, 'It's actually not that big a deal. We can do that.' So we took it out and I was toothless for three months, for the run of the movie [ The Hangover] .I take my job very seriously.

It's a fascinating culture [the South in the Civil War period] and so rife with comedic possibilities. And not in a way that...I have no intention of making fun of re-enactors. I think it's more just a celebration of their passion and enthusiasm, which is so infectious and maybe at times a little misguided.

My friend and I sang an a cappella rendition of Extreme's "More Than Words" at one of our football pep rallies in a desperate attempt to look cool. For a while, I wore pink Converse All Stars because I thought it made me seem daring and irreverent.

The improv stuff, that's always surprising so a lot of times that's really funny.