Ethan Russell: ''I tended not to tell people what to do, ever. This is one of my few, what I call 'made' pictures. We were on our way to Vancouver and somebody screwed up. Couldn't fly into Vancouver. Landed on the American side and went through customs and I saw the sign. I called Keith over. So he came over and he did this pose. And then I called Mick over, because I wanted to do Jagger-Richards. And the customs man said, ''Stop right away or I'll take the film.'' I knew [it was a classic shot]. That's why I stopped!''