Soon people will have to start calling Mary-Kate and Ashley "Elizabeth Olsen's older sisters." 2011 has been a breakout year for the willowy young actress- she's already getting awards buzz for her performance in the psychological drama Martha Marcy May Marlene (2011), and now she's signed on to appear in another type of awards bait- the costume drama.

Elizabeth is set to star as the tit-ular character in Therese Raquin, about a young girl forced into a loveless marriage by her overbearing aunt (played by Glenn Close), the result of which is a bosom-heaving, bodice-ripping knockout of an extramarital affair. The film is being described as a "dark, erotic thriller" (our favorite kind!) and will shoot in the spring.

Therese Raquin has been adapted for the screen once before, in a 1980 BBC miniseries that featured Kate Nelligan nude, so here's hoping that Elizabeth follows in Kate's footsteps and rips off that bodice post haste.

Mr. Skin members can see Elizabeth Olsen's twins in action on our Martha Marcy May Marlene page!