Being pegged as a taut psychological thriller, Martha Marcy May Marlene does have moments of suspense and psychological intrigue but I won’t go so far as to say it’s a thriller. It is dramatic, for certain, but I definitely was not sitting on pins and needles throughout the film, which to me, is a hallmark of a good thriller. I will say Elizabeth (Lizzie) Olsen’s performance is truly outstanding considering her lack of experience in any mainstream films.