I'm relieved to find I'm not alone in finding this juxtaposition of aggressive capitalism and high art a little difficult to stomach. A few days in, I interview director Asif Kapadia who is presenting his masterful tear-jerker documentary "Amy" about late singer Amy Winehouse. "It's a bit weird", he says, to appear before a mass of flashbulbs for a film that savages the role of the paparazzi.