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.]
Jessica Chastain kept it simple on the New York Times TimesTalks red carpet in Beverly Hills on Friday.
Not exactly a wow-worthy look, but still very pretty and elegant.
It also manages to whet our appetite for her upcoming Oscars look on Sunday.
We're dying with anticipation!
[Image via Getty Images.]