Active-shooter scenarios have become part of the education lexicon. I had fire drills. My parents had duck and cover - nuclear and atomic bomb drills. Kids today grow up with this idea that this could happen at any point in time.

The amazing thing about rotoscoping is that it's very malleable. Unlike green screen, where the computer subtracts out the background, rotoscoping is an additive technology in that you don't take anything away from the footage - you add layers on top of it.

In general, I just try to make the people that I'm shooting feel like they are in good hands. I'm open-minded, and I invite them to be open-minded to the process. I'm direct and curious.

In Austin, you work in anything that will pay and a lot of things that don't. The documentary filmmaker may also be a gaffer on a feature and producer for a commercial series and web host. Everyone just does a little bit of everything, and you have to because it's a secondary market.

When you make the decision to call somebody out of the blue and say you want to talk to them about the worst thing that has happened to you, and I'm going to turn it into a cartoon... you're bound to ruffle some feathers or turn people off.

I read Pamela Colloff's oral history about the campus shooting, '96 Minutes,' when it was first published, and my wheels immediately starting turning toward making a film and making it an animated re-telling.


Honestly, I don't think that the policies and issues surrounding guns will be easily figured out in our country, but we need to take a close look, and we need to have a conversation around those issues.

I love working with rotoscopic animation because under the incredible handpainted artwork are real actors and real human performances.

Two actors that I had particularly fantastic experiences with include Chris Doubek, a notable indie journeyman who also happened to live in the trailer behind my house, and Violett Beane.

I'm a big fan of Robert Altman, and one of the things I love in 'The Long Goodbye' is the way that he plays with the theme; it's just used in all these different ways.

When I went to the University of Texas, my first day of freshman year in 1994, I took a student tour, and I asked about the tower shooting. I was told, 'We're really not supposed to talk about that.' That was the official stance from the university.

As a documentary filmmaker, I try to be sensitive to my subjects.

As far as documentaries, 'Man on Wire,' 'Atomic Cafe,' 'Waltz With Bashir,' and 'Thin Blue Line' all offered me different perspectives to consider as we were designing the structure and approach to 'Tower.'

New York is incredible, but I never felt a part of a community.

Yes, I realize when I'm reaching out to people and asking them to talk about the most traumatic thing to happen in their lives, I have to be really sensitive and thoughtful.