Olivia Wilde attended The Incredible Burt Wonderstone film's Los Angeles premiere dressed in an elegant black, floor-length gown from Gucci's new pre-fall 2013 collection. The 29-year-old actress dazzled in this shimmering backless dress with an embroidered neckline, which she perfectly styled adding a pair of classic black killer heels by Charlotte Olympia. She accessorized her amazing look with an Edie Parker clutch and some stylish jewellery by Rona Pfeiffer. I think that Olivia looked simply stunning in this dress, and her red carpet look is just effortless.