Gory stuff can be shocking but it doesn’t really scare me. I’d say the kind of stuff that gets under my skin is the unknown. You hear a knock behind a wall and you don’t know what it is. Is there something there or not?

Even if you look at the 'Paranormal Activity' movies, at the end of the movie things get really crazy and nutty, but they all start in a very mundane situation that people can relate to, and that's also to some degree what we tried to do in 'Chernobyl Diaries.

I don't know. I think that horror, in general, is fairly popular. It's definitely popular in film. There's just not a lot of good horror on TV, so whenever there is good horror on TV, people rush to it.

The less people know about 'Paranormal Activity,' the more they enjoy it.

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.

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.