Even when I was making the first 'Paranormal Activity,' I didn't tell anyone I was making it, not my friends or neighbors or co-workers. I just kind of found that there was nothing to gain by announcing to the world that you're doing something.

After I watched 'The Exorcist' I refused to watch any other movie that had anything to do with ghosts or demons. I didn't even watch 'Ghostbusters' until I was much older.

Really it's always things that scare me like loss of control, dealing with the unknown and the unseen... Something that's not supposed to be there and you don't know where it came from, or what it wants from you, or how to defend yourself against it. That's the root of the things I find scary.

I think the tricky balance, the most important thing more than the horror is to have a compelling story, compelling drama, a show about great characters that you care about and you want to come back every week to see what they're up to.

By trade, I am a software programmer, so I never really had any experience with movies before. I started out with 'Paranormal Activity.

For a found-footage-style movie, there's a definite advantage in using unknowns, because it helps sell the illusion that it's real. A known actor would get in the way of the suspension of disbelief.

I've always had better luck learning things on my own. And I really love the challenge of doing it yourself and kind of being alone against the system.