I can't imagine a successful comedy movie without a successful comedy performance at the heart of it.

Ive never been a big believer in ghosts or the spirit world, and for me, that was part of the point of the movie, ... What the Ghostbusters represented was the triumph of human courage and human ingenuity. People create their own monsters. Our fears come from within us, not outside.

We tell our kids that policemen are good and God protects us and our country is noble, and at a certain point - and for some it comes quite early, five or six years old - we start to realize that it's all a facade.

I did a comedy with Al Franken about his character Stuart Smalley, which was really about alcoholism and addiction and codependency. It had some painful stuff in it. When we showed it to focus groups, some of them actually said, "If I want to see a dysfunctional family, I'll stay home."

I always think that the writer is doing the vast majority of the director's work, in a sense. If you're a writer who is also going to direct, you're doing all your preparation: You're already visualizing everything, you're imagining how the lines are going to be read, you see the blocking in your head, and you know the rhythm and the pacing.

You can't love somebody into a state of mental health.

My characters aren't losers. They're rebels. They win by their refusal to play by everyone else's rules.