Meanwhile it's got stormy, the tattered fog even thicker, chasing across my path. Three people are sitting in a glassy tourist cafe between clouds and clouds, protected by glass from all sides. Since I don't see any waiters, it crosses my mind that corpses have been sitting there for weeks, statuesque. All this time the cafe has been unattended, for sure. Just how long have they been sitting here, petrified like this?

It's very strange, for example, in North Korea where the volcano at the Chinese border is some sort of the mythical birthplace of the Korean people.

I have been in lots of very intense life situations. I have been shot at, and I have been hungry, and I have been in solitude, and I have also briefly been behind bars. So in a way, I know the heart of men.

The wonderful thing is that Clive [Oppenheimer ] insisted on training his camera - his private camera - on me at one point. We were discussing things such as how to avoid certain dangers, while reflecting on a volcano that had threatened to explode 40 years ago.

There are photos of Kim Jong-un right up atop the volcano. I actually wrote a letter to him asking if I could speak on camera. I never got an answer. But what was interesting was the people who were responsible for us, our "guards," it took them two days to figure out how I should address him. "President? No, you can't because there's a president for eternity." And it was a time when his status was still in flux. Only a few months later there was this party congress which assigned an official title to him, but that was after we did our film.

I went to volcanoes where I knew that there was a lot of mythology around them; there was something like the creation of gods and monsters and demons.

THE ACT OF KILLING invents a new form of cinematic surrealism.