Keira Knightley has revealed that she was once so unhappy with her body that she used a body double for her 2005 film Domino.
Speaking on The Jonathan Ross Show Knightley stated: "I have this policy in films where I say, 'You can have the top half but you can't have the bottom half', and it kind of works quite well.
"And there was this scene in Domino where I was meant to do a bit of a strip tease and a dance with a thong on.
"I was just like, 'It's not going to happen'. And so I said, 'Could you get me a bottom please?'."
She added: "And so I went into a room with Tony Scott, the director, and these three women came in and just dropped their trousers and he was like, 'Well, which one do you want?'
"And how do you say to the bottom double, do you say, 'Well I don't want that one, that one's crap.
"You don't get a feel. They then go out and you discuss the bottom. It's tricky, you go, do I introduce myself or not, and it's a bit weird if you don't. The girl we picked had a lovely bottom."
Knightley is currently starring alongside Michael Fassbender in the Freudian drame A Dangerous Method.
Check out what Michael Fassbender had to say about his big win at the IFTAs last night
