Shop Keira Knightley Valentino embroidered dress - 'Seeking a Friend for the End of the World'

For the Los Angeles Film Festival premiere last night she looked willowy and elegant in a nude sleeveless tulle dress. You have to see it close-up, the details are stunning - hand made floral embroidery, mixed with silver embellished vines that travel down the length of the skirt. A delicate red floral headband completes a deceptively boho natural style. I love her loose braided updo, click here for a better look.

You can actually pre-order this online from LUISAVIAROMA - the price is rather major, but what the heck! And if it's isn't quite within the budget, keep in mind this Italian online boutique also has a fantastic Summer Sale going on right now...

And early last week, she made an appearance on Late Night with Jimmy Fallon to promote the film, and wow, did she sparkle! Again, from Valentino Fall/Winter 2012, this was dark and very dramatic. Photos and details below..