The scene [in The Hangover] where the tiger actually pops up behind us, that's actually a Jim Henson tiger puppet. The Jim Henson Company actually supplied that tiger. And it's really cool. Its entire face moves. It has like all these little motors in its eyebrows and cheeks and mouth. It was amazing.

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.

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.

When I was 15 I lost a tooth and had an implant put in. Cut to 20 years later, I'm doing this part [Andy Bernard] and the script calls for my character to lose a tooth.

There is something beautiful in the mundane if you take enough microscope to it and focus in on something that seems innocuous to begin with.

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.

As an editor, you're constantly dealing with the best way to convey an exchange between two people. So when I'm shooting that, I'm just aware in the back of my head what an editor might want. And also, the problems editors run into when trying to edit performances - it helps me head that off at the pass a little.