Forty years ago this country went down a rabbit hole in Vietnam and millions died. I fear we're going down a rabbit hole once again - and if people can stop and think and reflect on some of the ideas and issues in this movie, perhaps I've done some damn good here!

The smarter people I know declined to watch the most recent debate [with Donald Trump].

You can think of my films as cautionary tales, but you might even think of them as despairing tales, because at least in a cautionary tale, you have this idea that by listening to the story you can assure a better outcome. Whereas I'm not at all convinced that's the case. In fact, if anything, I'm convinced that it's the opposite.

When you start talking about the known knowns and the unknown unknowns, you're thrown into a crazy meta-level discussion. Do I know what I know, do I know what I don't know, do I know what I don't know I don't know. It becomes a strange, Lewis Carroll - like nursery rhyme.

I like to think that one of things I've done with non-fiction since the very beginning is to find new ways of telling true stories.

It was assumed that you can't touch evangelical Christians. "Oh, they're the Republican Right. Stay away from those people. Don't even try to talk to them." Well, what's interesting is that there were evangelical Christians who were voting for Kerry. There were right-to-lifers who were voting for Kerry. And it's interesting to listen to the reasons why. To ignore that segment of the electorate is moronic. Particularly if you don't know who those people are, or what their concerns are.

I remember on page one of The New York Times the article about Fred Leuchter. The heading was "Can Capital Punishment Be Humane" and it was the story about an electric chair repairman and execution machine designer. And then buried in the back of the paper was the fact that Fred Leuchter had also been involved in holocaust denial.