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This movie is too new; the best resource for cast listings may come up with the answer, in due time. The only other way you're going to get an answer at this point, AznRawr2, is if someone recognizes the lady. The only easy way they are going to recognize the lady is if they own the movie. You would have furthered your chances had you gone through the trouble to present clear frame grabs of the actress, assuming you own the movie. It's not too late to do that... the woman you circled on the cover does not offer much to go by.
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If you get an answer, please make sure to go to the first thread you created in the wrong section and let everyone know.