The Banksy mural Slave Labour, which depicts a boy hunched over a sewing machine making union jack bunting, has sold for $1.2 million at a one-of-a-kind auction held at super cool Covent Garden venue the London Film Museum. The artwork has a chequered history, having been stolen from the wall of a North London store in May 2012, just before the Diamond Jubilee celebrations.

The auction saw celebrities, collectors and VIP clients come together to view and even buy some of the most important artwork of the modern era, including pieces from Damien Hirst, Andy Warhol, Mario Testino and other emerging young artists. Doors opened to complimentary champagne from sponsors Veuve Clicquot and canapés created by LMG under the guidance of the ex-head of celebrity restaurant Zuma.