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.]
The formerly estranged couple looked like they'd never even taken a break, posing comfortably for photogs in their designer finery.
Rosie looked effortlessly gorgeous in a black A-line dress with classic Alaia pleats and a sheer yoke. Her perforated clutch and pumps with embellished heels were also courtesy of the designer.
Meanwhile, Jason was dapper as always in a navy suit as he put a protective arm around his lady love.
You know, we wouldn't peg the action star as the fashion-loving type, but we hope he enjoyed the show!
It's great to see these two reunited! Don't ever take a break again, you guys!
[Image via Pacific Coast News.]