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.]
Somebody actually got a little dressed up at Sundance!
The uber talented 18-year-old wore head to toe Louis Vuitton, including a sequined navy mini skirt and sleeveless ribbed top that bared just a hint of belly.
She completed the ensemble with sheer black tights and black suede booties.
[Image via AP Images.]