I'm a huge fan of Zach's [Galifianakis] and I auditioned Zach a million years ago on a movie called Duplex which I was fired from. But Zach came in - It was like 2000, maybe - as a buddy stand-up that people were starting to notice and there was something about him I loved. He wasn't quite right for the part in [Keeping Up with the Joneses] and I got fired anyway, so who cares? But I always wanted to work with Zach.

I was in college - Carnegie Mellon, which is one of the reasons Pittsburgh was appealing to me - and I personally feel that whole world of what we used to call "college radio" is a big part of what kept me sane through a period where I stopped dating, I felt like a freak, I felt like no girl would like me. You know, a very adolescent response to losing my hair. I turned to obsessing about The Replacements and The Smiths and R.E.M. and getting further into The Velvet Underground. People who, in my sheltered suburban life, I knew of, but didn't know fully.

I was naïve when I was young, I was sheltered. I had illusions about who I was going to be, delusions, and a little bit of pretentiousness. And I thought, "I'll write the guy like that. It'll allow me to make fun of everyone else if I make fun of myself."

[Keeping Up with the Joneses] is not one of those movies where people get shot and fall down and there's no reality of what would happen if you got shot and knocked over a motorcycle. It's meant to be a slight comedy in that sense.

I'm really glad to have made a movie that way on Superbad, because I learned a lot about what can be done and what the limitations are.

When I was a TV director working on Judd Apatow's show Undeclared. I was surrounded by so many young people. People like Seth Rogen, who was 9 years old or something. It was just a ridiculous amount of talented young people. I started to think I'd like to see a young-love movie, but not one done in that glossy, Hollywood, high-concept manner we've become accustomed to. One that was, for lack of a better way of putting it, a little more ambiguous, '70s-style, where everyone was flawed, middle-class characters.

I feel this way about a lot of movies, that the characters are idealized versions of people. For better or worse, I am as fascinated with human flaws as anything.