Keira Knightley is said to have prevented studio bosses from digitally enhancing her boobs.
The 23-year-old actress who plays Georgiana, the Duchess of Devonshire, in the period drama, 'The Duchess' says that she is "proud of her modest assets and didn't want them changed in any publicity shots".
A source said, "She has insisted that her figure stay in its natural state. She is proud of her body and doesn't want it altered. But she looks flat-chested throughout the whole movie".
Keira's decision comes after her breasts were enlarged for posters and in publicity stills for the 2004 movie 'King Arthur'.
She said at the time, "Those things certainly weren't mine! I was like, 'OK, fine. I honestly don't give a s**t!'".
Keira also said on a previous occasion, "I would love to have boobs! I'm never going to get them. I'm naturally who I am".
