I was told 50 percent of the population gets cancer. Everybody is going to be affected.

I like doing commentary. As a filmmaker and film student, I think it's really interesting to hear what a director did and how they figured out how to do things. I often like the technical commentaries myself.

We read about secret lives that people have on the Internet, or alternate lives of a serial killer where the whole family didn't know that their dad or their brother or their child was that. There are all the things in our heart that no one really knows, and I thought that that was interesting territory to explore.

The truth is, most of those female stories that are contending for Oscars are directed by men. Let's be honest. I looked at the 44 Oscar contenders in Variety that someone wrote up - there was not one directed by a woman. All the ones that were getting an Oscar pitch with the money and everything behind them were by men.

When I talk to film students, I always say, "Buy the DVDs and listen to the commentaries, look at the making of, look at the behind-the-scenes," because that's such a great learning tool.

I thought it would be quite a challenge to direct a mystery thriller. I hadn't really done something like that.

You can't really just think, "Oh, I want to make something that is going to appeal to every single person in the world." You have to just try to make a movie that comes from your heart.