We first reported on this project last November when Scarlett Johansson signed on. Here's a description of the movie and Scarlett Johansson's character from that report.
"Johansson plays an alien on earth, disguised as the perfect aesthetic form of a mesmerizing woman. She scours remote highways and desolate scenery looking to use her greatest weapon to snare human prey -- her voracious sexuality. She is deadly efficient, but over time becomes drawn to and changed by the complexity of life on earth. With this new found humanity and weakening alien resolve, she finds herself on a collision course with her own kind. Taking her point of view throughout, the film presents a unique look at our world through alien eyes."
Jonathan Glazer (Sexy Beast) is directing Under the Skin from a script he co-wrote with Walter Campbell, which is based on the novel of the same name written by Michael Faber.
Under the Skin comes to theaters in 2013 and stars Scarlett Johansson, Paul Brannigan, Krystof Hádek, Jessica Mance, Scott Dymond, Joe Szula, Michael Moreland, Lee Fanning. The film is directed by Jonathan Glazer.