Fake or Fortune?

Today the Fake or Fortune? team, including Philip Mould and Fiona Bruce, investigate the dodgy Russian art market to find out whether a painting attributed to Marc Chagall is the real deal or not. It cost its owner - a property developer - £100,000 in 1992. He thought it was a bargain too good to resist at that price. If it's genuine, there's still one major snag: it hasn't been fully authenticated by the Chagall Committee in Paris! Find out what happens this evening at 6pm on BBC One.