Happy Birthday, Keira Knightley! Here’s Your Most Fashionable Looks (PHOTOS)

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Few actresses in Hollywood have accomplished so much in such a short time as Keira Knightley has. She’s proven herself as one of the most reliable and talented among the young Hollywood actress crop — and even has an Oscar nomination to prove it. She’s also become the face of some of the top fashion and cosmetics lines across the globe, as her beauty translates far beyond the big screen — as does her risk-taking sense of fashion.

All that … and she’s only 26 — as of today (Saturday, March 26)! And to celebrate, Celebuzz has rounded up some of her most glamorous and fashionable looks.

Yes, Miss Knightley is turning the big 2-6 on Saturday, and she’s got plenty of reasons to celebrate. Lately she’s been working as the face of Coco Chanel’s Mademoiselle, and just this week a short-film version of the line’s new commercial was unveiled. In it, a seemingly nude Knightley wakes up in bed, and clad solely in a bed sheet, begins a wild day on the Paris town. Check it out:

Keira also did a bit of acting research this week when she dropped in on a school to study up for a role in which she’ll play a teacher at a boarding school. She said of the kids and her school guides: “They were so kind. I got them to do a scene from the play – basically I did a drama class. It left me with a great respect for teachers. It gives you an insight into how tired you are after just an hour.”