For the Oscars 2015, the 87th annual academy awards red carpet, here our selection of elegant and best dressed womens. In order of appearance. Margot Robbie in Saint Laurent, Sienna Miller in Oscar de la Renta, Meryl Streep in Lanvin, Gwyneth Paltrow in Ralph & Russo, Emma Stone in Elie Saab Haute Couture, Cate Blanchett in Maison Margiela, Marion Cotillard in Dior Haute Couture, Jennifer Lopez in Elie Saab Haute Couture, Dakota Johnson in Saint Laurent and Dorith Mous in Dennis Diem. More about the Oscars ceremony, the winners & red carpet + oscar.go.com