At the film's Mexico City premiere, Cynthia stepped out alongside her co-stars with an unbelievable Thom Browne black gown ...
In the original Wonderful Wizard of Oz book by L. Frank Baum, the slippers are actually silver, just like Ari's shoes here.
READ MORE: Charlize Theron, 48, Is A Show-Stopper In A Sheer Blouse & Leather Skirt For 'The Hollywood Reporter' Beauty ...
The Ocean's Eight star knows how to channel old Hollywood glam!