Here is Keira at the Venice Premiere of Atonement.

Hair

[01] Curl your hair.
[02] Pull it back into a loose messy bun and secure it neer the bottom of your head.
[03] Pull bits out and run your fingers through your hair to make the look appear more messy.
[04] Put clips into your hair, like the ones Keira has.


Makeup
Make-up [01] First cover any dark undereye circles and blemishes with a well-covering concealer that matches your skintone (it should be just a tiny bit lighter than your skincolour)
[02] Use an oil-free foundation (or some tinted moisturizer if you don't need full foundation) to even out your skin tone.
[03] For the eyes use a soft pink with gold shimmer all over the lid and line both the upper and lower lashline with a golden shadow. A good example is Nars duo eyeshadow in Windstar.
[04] For more depth use a more neutral brown eyeshadow with shimmer at the crease. Blend well with the pink shimmer. Nars eyeshadow in Lola Lola should do the trick.
[05] Line the lower inner lashline with eyeliner pencil in Iceberg (white or shimmery silver).
[06] Apply a thin black liquid eyeliner in angel Heart to the top lashline. Make sure it doesn't come all the way to the inner corner of the eye.
[07] Make your eyes pop even more with a rich coat of mascara in Orchid Black.
[08] With those rich eyes, we'll play down the lips a bit with a sheer lipstick in Napoli (a pinkish beige)
[09] Brighten up the entire look with a cream blush in Gueule de Nuit on the apples of your cheeks.