Keira Knightley dazzles on the cover of US Vogue

Keira Knightley graces the cover of the October issue of American Vogue photographed by legendary photographer Mario Testino.

In the feature the actress talks about her new film Anna Karenina, and about her upcoming wedding to The Klaxons' James Righton.

The October issue hits newsstands nationwide on September 25 and is available now as a digital download for the iPad®, Kindle Fire, NOOK Color™, and NOOK Tablet™ and at AmericanVogue.com.

Pictures: Mario Testino/VOGUE