The hashtag "les nipperables" quickly erupted on Twitter in a nod to the A-lister's other two stars that stole the limelight.
The pink Prada dress, which the actress described on the red carpet as "business in front, party in the back," had plenty going on in front.
Austin Powers references aside, a Twitter debate broke out on whether the dress or Anne's anatomy was to blame for the wardrobe malfunction.
While Sheri Lynch queried, "Anne Hathaway -- dress darts? Nipples? Nipple darts? I'm worried."
One thing's for sure, it should be two strikes and you're out for Anne Hathaway's stylist.
Claudine Zap writes for Yahoo! Movies