On September 15th 2008, the day of the the collapse of Lehmans, the worst financial news since 1929, Damien Hirst sold over £60 million of his art, in an auction at Sotheby’s that would total £111 million over two days. It was the peak of the contemporary art bubble, the greatest rise in the financial value of art in the history of the world. One art critic and film-maker was banned by Sotheby’s and Hirst from attending this historic auction: Ben Lewis.

• Documentary