Documentary 'Lost Leonardo' unpeels the story behind the Salvator Mundi

We're accustomed to movies – usually adventures, like Indiana Jones – with lines that traverse the globe and pinball between global capitals, showing us where our characters are traveling.

The Lost Leonardo, a documentary about the rediscovery of a Leonardo da Vinci painting, begins with such a line. But its international stops, chronicling the painting’s sales, are baffling leaps.