Keira Knightley for Harper’s Bazaar UK September 2012 by Ellen von Unwerth [Photos]

Keira Knightley for Harper’s Bazaar UK September 2012 by Ellen von Unwerth Photos - 010

Pouty-lipped actress Keira Knightley goes gothic glamour on the cover of the September issue of UK Harper’s Bazaar magazine. For her dark and moody Ellen Von Unwerth-shot editorial, the 27-year-old screen siren continues to channel a modern-day Guinevere.