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.

The piano song that I do in the movie [The Hangover], it's a great example, that was never - that wasn't in the script.

[Mike Tyson] was fantastic. Well, here's the cool thing about Tyson. It turns out he's a huge fan of Old School, which was one of Todd Phillips' earlier movies. So he got to the set and he already liked Todd and he trusted Todd.

Getting any movie made is just like trying to push a giant boulder up a mountain, and there's so many moving parts. Obviously, there's the creative side, and then there's the logistical side, and they're both colossal.

Improvisation is about finding the best joke or the silliest way to get something across. Improvising conflict is always fun because you can just go for it.

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.

I've always been into toys and kits and models. I'm kind of a toy nerd.