Mary-Kate and Ashley Olsen hit the Empire Hotel rooftop last night to toast their younger sibling Elizabeth Olsen's Martha Marcy May Marlene premiere. Mary-Kate and Ashley were in their signature fur for the evening out. The sisters declined to pose for pictures on the red carpet at the film's debut, but they did stop for a few snaps at the afterparty. Elizabeth Olsen has been getting wide acclaim for her first major film role, which is already garnering award-season buzz, and her older sisters have been two of her biggest supporters. Ashley and Mary-Kate attended Elizabeth's Nylon party, to celebrate her cover story in the latest issue, just last week. They also dress Elizabeth in their designs for many of her appearances — their line Elizabeth & James is named for Elizabeth and their little brother — although the actress opted for Alexander McQueen last night.