Ilya S. Savenok/Getty Images for Christie's Auction House The Leonardo da Vinci painting "Salvator Munti" has a major flaw. It doesn't obey the laws of physics in a crucial way that's uncharacteristic of da Vinci. Critics say the flaw indicates it's a fake. Defenders say he did it on purpose. A major flaw in a painting identified as one of Leonardo da Vinci's lost works makes some historicans think it's a fake.