This is Eva Green's version of a bouffant updo. Her bangs are pulled straight back and worked into the bouffant which has some decent height on top.
The sides are pulled back and kept close to the scalp. She has medium/dark brown hair and a fair complexion. Her eyes are blue grey and match her high neck dress. This shot was taken at "Dark Shadows" Los Angeles Premiere. Eva plays Angelique Bouchard who placed a curse on Barnabas Collins (Johnny Depp) which turned him into a vampire in the 18th century. The original soap opera, which the movie is based on, aired from 1966 to 1971 so this retro 60's beehive hairstyle is perfect for the occasion.
Here is a YouTube that you may find useful to help you with your styling endeavors.
[mc src="http://www.youtube.com/watch?v=aw5nfprvCE4" type="youtube"]60's beehive styling help[/mc]