Well, the dress has been found ... to be a fake!
The thief who took the gown says he took the dress from Lupita's room at The London after finding the door ajar.
[Image via WENN.]
For the fourth and final installment, French actress Marion Cotillard takes on the role of Lady Grey, a sexy burlesque dancer in London.
The steamy clip is filled with sexual tension and is the perfect ending to the Lady Dior's campaign.
See the sexiness in the clip (above)!