I had two projects that fell apart during preproduction. The first one was this movie that Judd Apatow and I had written about two guys following the Rolling Stones. It was going to be half concert film, half pseudo-documentary. It was Mick Jagger's idea.The other one was Simple Plan, based on a novel by Scott Smith. It's a great book - really stark, not a comedy - about a guy who finds $4 million in a plane crash and decides to keep it.

It's weird that people expect me to be funny. I find it a real burden when I'm expected to be humorous on talk shows.

I have a lot of nervous energy. Work is my best way of channelling that into something productive unless I want to wind up assaulting the postman or gardener.

I recently watched that Lucie Arnaz-produced documentary [Lucy and Desi: A Home Movie, 1992] about her parents [Lucille Ball and Desi Arnaz], and I saw so much of my own childhood there.

Oh, you can milk just about anything with nipples.

When I was growing up, This is Spinal Tap [1984] was the ultimate comedy, and it was the kind of thing I wanted to do. But you get to a point with parody where you can't go much further because ultimately it's feeding off of somebody else's creativity.

I'm very interested in the early American history, the time when the country came together.