Could this be the costume for the new, much-discussed-but-not-yet-official-Wonder-Woman-Movie? A) We should be so lucky, and B) this isn't Olivia Munn but Mariana Marcki - perfect for a Red, White and Blue event like the U.S. 4th of July weekend.
Happy and safe 4th to all celebrating!
Photo from poster AAC80 at Use My Computer Forum via this HQ-Models post.
UPDATE: Forget the above link; HQ Models now has a new location