Clive [Oppenheimer] and I figured out that I'm the only one probably in the film industry who is clinically sane. I say that as a joke, but there's a grain of truth to it. I'm not a stupid daredevil who jumps into the crater of the volcano to get the closest close-up, I'm not one of those. And you have to be aware that you have a crew with you and you are responsible.

You will learn more by walking from Canada to Guatemala than you will ever learn in film school.

The deal was we had to have people accompanying us and they would ask us not to film something [in North Korea]. For example, we wanted to film at a certain place and there happened to be a building under construction and it didn't look as fancy as the other buildings, so they wanted us to shoot where everything looked finished and made a good impression of the cityscape.

You should bear in mind that almost all my documentaries are feature films in disguise.

I think a state should not be in the capacity of killing anyone with the exception of warfare.

I wouldn't make a connection between the daily news and volcanoes.

I make films because I have not learned anything else and I know I can do it to a certain degree. And it is my duty because this might be the inner chronicle of what we are. We have to articulate ourselves, otherwise we would be cows in the field.