Keira Knightley refuses digital breast enhancement

British actress Keira Knightley has refused to have her breasts digitally enhanced for her new movie The Duchess.

The slender 23-year old Pirates of the Caribbean star has demanded that her chest not be “photoshopped” — after a digital boost for another recent film drew unwanted publicity, according to The Sun.

“She is proud of her body and doesn’t want it altered,” a source was quoted as saying.

Knightley blamed marketing teams for a busty transformation during the 2004 promotion of King Arthur.

“Those things certainly weren’t mine,” Fox News quoted her as saying in 2006.

Although the actress has previously revealed she “would love to have tits”, she said she would never have a boob job, declaring “I’m naturally who I am”.

Despite a corset-assisted lift in The Duchess, Knightley appears flat-chested throughout the 18th-century aristocratic drama.

But she did require another type of aid during filming.

The small-framed star used a specially designed headrest on set to ease the weight of her massive hairpiece, the Sun reports.

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