A source said: "For all the people excited to see Keira, yes, you do see her
topless.
"She is nude in a couple of scenes, once during a love scene and another
when she leans over her husband with her gown gaping open and he remarks
that her breasts are small and like a little girl's."
Keira plays Helene, the wife of 19th century silkworm smuggler Herve who is
in love with a Japanese baron's concubine.
The 'Pirates of the Caribbean' actress has flashed flesh in previous films,
including 'The Jacket', 'Domino' and 'The Hole' - in which she exposed her
breasts.

In other news, Keira Knightley was banned from pouting when she filmed 2005's Pride And Prejudice - because it was too sexy. Director Joe Wright was reluctant to cast the actress as Elizabeth Bennet in the big screen adaptation of Jane Austen's famed novel because he felt Knightley was too good looking for the unglamorous part reports StarPulse

Knightley recalls, "The big thing was that I was absolutely banned from pouting. The director and crew would be on permanent pout watch. Any sign of my pout and they'd scream at me, 'Pout! Pout! Keira, pout alert!' I honestly don't do it to be sexy. I do it when I'm concentrating and I sort of puff my lips out. I always think it makes me look kind of constipated."