Sundance is always great for throwing up a few films that grow in popularity to become pretty big hits, with the quality largely intact. One of the most popular of the festival this year, Martha Marcy May Marlene, is getting a proper release under Fox Searchlight later in the year, and now we have a trailer to give us a look at why it got such a good reception.The film, starring Elizabeth Olsen (younger sister of the Olsen twins, no less), Hugh Dancy and Sarah Paulson and is about a young girl sucked into a cult in modern-day Connecticut. As we can see from the trailer, even though she appears to get out of the cult, that's when the real drama starts. It looks suitably creepy and twisty-turny, and potentially pretty dark too. Check it out for yourself below - the film opens October 7.
