Keira Knightley

Keira Knightley has never been shy to bare her breasts on-screen, but the star suddenly turned shy when it came to baring her behind! The actress hand-picked her bum double for the thriller Domino, in which her character performs a risqué lap dance.

With her strict policy of 'you can have the top half but you can't have the bottom half', Knightley commented in a TV interview: 'I was just looking for one that's around the same shape as mine, just a bit better. So there was one that was really amazing and I was like, no one's going to believe that.'