Keira Knightley Nipple Slip Taunting
Keira Knightley attended the UK premiere of Atonement in a very skimpy dress and revealing dress, keeping everyone watching for the obligatory nipple slip or see-through moment. Another star that knows how to pump the breast publicity machine - Keira Knightly's Un-Dress

Related:
Keira Un-Knightley
Celebrity Nipple Slips
Beyonce Knowles Nipple Slip
Britney Spears Nipple Slip Rules
Lindsay Lohan's Beach Boob Exposure

Did Keira slip up? - close up below...

Maybe a little see-through on the side, but Keira is mostly tease - click to enlarge...

Bonus: A hilarious post... Keira Knightley Has Some Pretty Cool Friends

Photos via UseMyComputer