Practiced poorly, tourism can be extremely negative.

You never make all things for all people and can't always pander to the broadest denominator. I keep an eye toward doing the themes that interest me. Do they move me? Interest me? Make me think? When I run across something that is provocative in an unsettling way, it appeals to me.

I started, with three friends, this website called Crowdrise that's sort of the Facebook for personal philanthropy, a place where anybody can have a permanent microsite of their own to stage creative fundraising projects for the charities and causes that they care about. And we did it with serious intent but without any ambition.

I'm a New Yorker, you know.

There are tens of thousands of charities and hundreds of thousands, getting towards millions, of people now using it. And when I flip through it, I'm just blown away by people.

When I look at the directors that I really love, who really develop their films over time, they're almost always the ones who go back again and again and again at the same investigations. I think that when somebody has a theme they go after, it's fun to service that. It's like, "I know you now. I know what you go at." It helps you locate yourself a little bit quicker in their world.

Practiced poorly, tourism can be extremely negative.