Films are big hits when they touch a lot of people. Things are not funny in a vacuum, they're funny because we respond to some personal dislocation, some embarrassment, some humiliation, some pain we've suffered, or some desire we have.

I look for the meaning in what's funny, and I look for what's funny about things that are meaningful to me.

I learned over the years that it's easy to appear smart referencing things that people don't know.

If people work together, if they can keep a cooperative spirit and use their ingenuity and balance it all with good humor and good will, then there's nothing to be afraid of. That's the sappy part of it, ... On the other hand, every Halloween for many years when my kids were trick-or-treating I would put on my 'Ghostbusters' jumpsuit with a police flashlight to protect all the kids from ghosts.

I made a handshake agreement with my best friend in college, Michael Shamberg, who is now a movie producer. We used to write shows together, and we said, "Let's only do what's fun. Let's never take a job where we have to dress up in a suit."

I've never taken a script to the stage or to principal photography and said, "This is perfect. This is as good as it can possibly be." It's not Shakespeare, you know; you know it can probably be better.

When a director writes, there's a compulsory arbitration. You have a right to challenge any of the arbitrators, but they pick three of four arbitrators who read all the drafts with no names attached and then allocate credit.