When I became successful, I put up a caution. I didn't think it was fair to have the shadow of that kind of success thrown on my family. And I was cautious about being taken by things that could destroy you.

I think documentary filmmakers need as much protection as possible under journalist's privilege. How else is the public to know what is going on?

Ambiguity is something that I really respond to. I like the complexity of it.

We've lost our moral foundation, which allows us to go this far over. So I don't blame Trump. I just think he is what he is. We're the ones who let that happen. We should be looking at ourselves.

Generally speaking, I went through that. I came to a place where I realised what true value was. It wasn't money. Money is a means to achieving an end, but it's not the end.

In fact, I think more broadly about what an audience requires, but I want an audience to be fascinated by the process of finding an answer, or finding out there isn't one.

Usually I like to improvise. Sometimes, depending on the nature of the piece, I like to improvise because I think it brings a certain freshness and a reality to it, as long as it doesn't go too far out of the box.