The great thing about theater is the doing it again and again and again.

I'd been working on more traditional movie sets and TV shows at Universal. All of a sudden, here we're on location in Animal House, and it's down and dirty and quick. It was the way the new commercial world was shooting; the way the indie world was shooting. These were lighter, faster cameras. It was a generational change.

Life has its ups and downs, so to expect otherwise is setting yourself up for disappointment.

To me, as a director and an actor, that's the main thing. "What's the heart of this story? What's the humanity of this story? And if the movie doesn't have it, then why am I watching it?" Even if it's a silly comedy, like Superbad or Knocked Up - Judd Apatow, I love, because he's all about heart. The humor comes out of the humanity.

As a director, I know everybody's job, and I know how to do it. I can smell bullshit when someone's telling me it can't be done, because I've seen it done a hundred thousand times.

The core of Animal House was about prejudice, about equality, and about inclusion/exclusion. It was about a group of people who were together and anything went. Anybody who wanted in could get it in. Then there was that other group that nobody could get in, unless they were white, and just alike. It was very representative of the culture in the '60s, '50s, and '40s in America.

When I worked with Chevy Chase, Michael Ritchie would say, "Just ad lib and try to break me up. Just insult me. Anything." When we were doing his close-up, or when my back was to the camera, I would come up with jokes or quips or anything, to get a real reaction out of him. He was smart enough to know that was gold. So it was great fun working with him and Michael, and getting to see how the two worked together. I think Fletch and Clark Griswold were Chevy's two best roles. He's so incredibly talented and still vastly underused.