Three years ago Banksy's Girl With Balloon shredded itself just after being sold at Sotheby's for £1,1 million. This October the same painting is back in the sale room. This time with a new name and a four time higher value. Listen to Banksy’s former agent Steve Lazarides and the story how Banksy went from being a reviled street artist to becoming the art world's most well kept secret.
Produced by Eric Palmcrantz, Figaro Music & Media Group.