There are certain relationships in our lives that implode, and it can feel really inexplicable and terrifying. You don't know why, and sometimes relationships end for reasons that one person keeps from the other person, and it's just totally unclear, and it just goes south and it's heartbreaking.

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

You see a lot of sides of people on a movie set because it can be really taxing and to kind of go through all that together - you really get to know someone.

First there was the New Hampshire primary, and we had nearly a year leading up to it. And now, look! Three primaries in one weekend! How many of these things are they going to have?

I think the culture of Civil War re-enacting is also incredibly fascinating.

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

It's just one of those things like when you're not supposed to laugh, it makes it that much harder to stop laughing. And for some reason Zach [ Galifianakis] and I get in this feedback mood of giggling, and on the set of Hangover we just couldn't get through stuff.