2000“In 2010 I was making a film in Afghanistan, about drug smuggling in that country,” he says in his audio commentary “We interviewed a warlord about how he was growing heroin and so on. It was the middle of the winter.

“Everyone thinks of Afghanistan as being a desert but actually, especially in the winter, it’s incredibly cold. As we walked out of his cave I turned to him and said: ‘What are you going to do when the war ends?’ He threw his arm out over the snow-covered valley and said this.”

Taken at Hammersmith Tube station in London, UK.