When you try hard at everything you do, even when it feels foolish to do so, you’re opening up doors and possibilities you might not be seeing in the moment.

We spent six weeks there [in Vegas]. The only thing crazy that I did was shoot that movie [The Hangovers]. The stuff in that movie is way crazier than anything I might have done, drunk one night in Vegas. I mean we did it for real in the movie, so that's as crazy as it got.

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.

Vulnerability is huge. I love to see that in characters. It's something I feel like a lot of my comedic heroes have always done.

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.

[Chickens] are very frenetic. So if you think about it and you look back in other movies, like if someone's taking a crazy bus ride somewhere and it's like, 'Oh, what makes this bus ride crazy?' There's a chicken in the aisle, or like there's a chicken in a crate. So I just think the presence of chickens makes things crazy.

Todd [Phillips] doesn't care. That's part of his genius as a director, he will say anything to anybody.