Waif-like Hollywood star Keira Knightley is famous for (and famously proud of) her flat chest, so it was a little shocking to see her looking unusually well-endowed in a new Chanel advertisement.

Knightley, 24, was vocally displeased when her chest was digitally enhanced on the poster for 'King Arthur' in 2004. Chanel has increased the actress's bust size before, prompting Knightley to comment, "Those things certainly weren't mine," the Sun reported in 2007.