The rule of thumb for a director or producer - which prevents them from just sticking their names on everything - is that you have to contribute substantially more than 50 percent of the character dialogue and story.

The comic edge of Ghostbusters will always be the same. It's still treating the supernatural with a totally mundane sensibility. In the world of ghostbusting, there are certain givens. You're always going to have some new invented technology, some pseudo-science that sounds right because we drop enough familiar terms from physics and engineering, and pseudo-methodology, something that people will think they may have read something about before.

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."

If people offer me decent roles in good films, of course I'll take it. But I just didn't like the actor lifestyle. You end up focusing all your energy on trying to get parts you don't even want.

Life doesn't care about your vision. You just gotta roll with it.

The rule of thumb for a director or producer - which prevents them from just sticking their names on everything - is that you have to contribute substantially more than 50 percent of the character dialogue and story.

I collect spores, molds, and fungus.