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.

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.

As an editor, you're constantly dealing with the best way to convey an exchange between two people. So when I'm shooting, I'm just aware in the back of my head what an editor might want.

God bless him, I mean a lot of times you get non-actors on a set and they get really self-conscious, especially when doing something crazy like singing along with Phil Collins. They get sort of reserved and self-conscious. Mike [Tyson] completely trusted Todd [Phillips] and totally put everything into it.

I happen to think singing is hilarious, especially when it pops out at the wrong time.

I'm sure I cause just as much consternation for editors as any other actor, but it definitely makes me feel more comfortable understanding how and why all the different camera setups exist.

The biggest thing that comes out of improv that gets built on is just character traits. You know, for me the singing was born out of improv.