Some of the best stuff in all my movies has been improv.

As a director, you've got to have quite a few projects going because you never know which one will actually come together with the financing and get the green light.

Even after I had just done Twilight, which made $400 million at the worldwide box office, I could not get financing for three or four projects that I really loved and I thought people would love because they didn't fit some studio or investor's model of thinking, "This will definitely make money." It's a business and a film does potentially cost millions of dollars, and they have to think that they're going to get their money back somehow.

I can go back to my very first movie, Thirteen, and think about that exact moment when I saw Nikki Reed and Evan Rachel Wood do their chemistry read audition together. It just came alive. I was filming it with a video camera and I was like, "I know I can make a good movie now."

It's interesting for me to do the commentary with the actors because, as a director, you're so in your own world that you see it from your perspective, your issues and what you were trying to do, and then it's really very fun to hear their perspective on how it was to do a particular scene or how they felt, and sometimes, I didn't even know that, at the time.

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.

Usually, we have some of those nostalgic moments like, "Oh my god, I can't believe we survived that day," because filmmaking is such a wild roller coaster ride.