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.]
Ohh! So pretty!
Keira Knightley stole the show at the Hollywood premiere of Anna Karenina on Wednesday night.
Princess Leia-esque hair and a playful pink lip completed Keira's look.
Ch-ch-check out more of the red carpet fun (below)!
[Image via FayesVision/WENN.]