It's always about finding the right balance between answering some questions and raising new ones to keep your story going.
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.
On 'Paranormal Activity,' it worked to my advantage not to have much of a crew, but on a bigger movie, where you have to work with a larger group of people who basically become your second family for a few months, it can be a great experience. Even though all of my projects are small scale compared to most Hollywood productions.
I do not buy CDs any more; I usually stream Internet radio. For movies, I hardly every buy any DVDS. I have a DVR, so just record things off HBO, Showtime and so on.
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.'
'Paranormal Activity' was a unique project in that I made it basically on my own, with a little help, and I had no exposure to the filmmaking world when I made it.