When we speak about trespassing, we speak about artistic trespassing. You have to be prudent and have common sense and a sense of responsibility when you're trespassing. I think you haven't seen a film on volcanoes like that before. It's not National Geographic. It is wildly imaginative and very poetic and has a sense of awe that you normally do not see in films.

The power of a volcano when it erupts is so evident, so visible, so palpable.

Our presence on this planet does not seem to be sustainable. Our technical civilization makes up particularly vulnerable. There is talk all over the scientific community about climate change. Many of them [scientists] agree, the end of human life on earth is assured.

Otherwise you have to repeat a lot when you're filming. And I've seen the film and it's in a border town in Mexico close to the border with the United States, so of course you have a lot of traffic and noise and dogs barking right nearby, and for that you have to repeat a lot and Robert Rodriguez didn't do that. Smart, smart, smart, you better have smarts also.

I do not want to have a cell phone. I do not want it for cultural reasons. I do not want to be available all the time. I want to have time to think and to touch somebody, and have a meal across my kitchen table without a cell phone, being constantly on tweets.

Gaining trust is not difficult for me. I needed to gain the trust of the North Korean supervisors.

You better make yourself acquainted to what the requirements are, what the value of money is all about and how you create a long-term survival, and in many cases it has to do with how you handle finances.