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.]
She's turning into a red carpet pro!
Looking absolutely striking in a satin vintage Valentino strapless gown with trumpet hem, the 28-year-old actress easily grabbed the attention of everyone there!
She accessorized with a Roger Vivier clutch, and styled her dark hair into a simple updo with wispy bangs.
[Image via Andrew H. Walker/Getty Images.]