I'm not a believer in the pratfall. I don't think it's funny just to have someone fall down.

That's one of the great things about DVD: In addition to reaching people who didn't catch the movie in theaters, you get to have this interaction of sorts.

When someone's an actor and you're an actor, you meet them and you feel like you know them. We're in the same business, and we all speak the same comedy language.

My only conclusion about structure is that nothing works if you don't have interesting characters and a good story to tell.

I've always thought that comedy was just another dramatic expression. I try to measure the amount of truth in a work rather than just looking at the generic distinction between comedy and drama. There's a lot of bullshit drama that leaves you totally cold. And there's a lot of wasted comedy time too. But when you get something honest, it doesn't matter what label you give it.

With both Caddyshack and Vacation, it's not like the subjects were serious enough that they engaged my interest for another round. I love the characters, and the actors were great, but I didn't see the need to make another Vacation movie.

When you're a big enough part of the process that the Writers Guild gives you a lot of credit, that's a good thing. It tells me that I've had a significant impact on the film as a writer.