Photographers are generally proud to show off their best shots, but what about their worst? Jane Bown, Martin Parr, Terry O'Neill and others reveal all.
I had an idea that all our leaders are presented to us through a veil of propaganda. I went to see Ban Ki-moon, secretary general of the UN, and said I wanted to show our leaders up close and personal. In 2009 I was given unprecedented access.
I shot around 110 world leaders and, fortunately, there were no technical mistakes. Ahmadinejad was the biggest surprise. On the first day, he made one of the most controversial speeches ever given at the UN, and a large proportion of the auditorium walked out. As he left the stage his supporters swarmed him, patting his back and shaking his hand. There were about 150 people pulling him in different directions. I elbowed my way into the middle of the scrum, grabbed both his hands, looked into his eyes and said, "Come with me, I am going to take your picture." As I gently pulled his hands, miraculously he started to follow me to my studio.
I was expecting to get that dictatorial menace he had shown in his speech. But he suddenly realised that, not only was he about to sit for the most intimate portrait of him ever, the crowd was also watching. They were all cheering; he lost his composure for a second and started to laugh. What I got was him trying to regain his composure. It's the most sinister leer I've caught on film.
It was a missed opportunity, in the sense that he was trying to gather himself and deal with the embarrassment of performing in front of all those people. On the other hand, it gave me something I would never have expected. No one thinks of Ahmadinejad as a man with a hint of a smile.