Day six at the Cannes Film Festival was almost entirely dominated by Kate Moss’ return to the high-profile red carpet after 15 years. Arriving with her little sister and fellow model Lottie Moss, the fashionable siblings attended the premiere of Loving, one of the most anticipated films at the festival. Wearing a one-shoulder vintage Halston gown, Moss posed and preened for the press, showing off her killer legs in the red mini-dress. Her sister wore a matching red-toned gown, in a floor-length, long sleeve number by Dior. Another surprise attendee was Mischa Barton, who’s been out of the spotlight since her stint on The OC, who came to show her support and watch the premiere of Loving. She looked stunning to say the least, dressed in a sheer Georges Hobeika gown. Our favorite look of the evening was Kirsten Dunst in a custom Dior gown with skinny straps, a trim waist and 3D floral appliqués falling from the bodice. Reportedly the gown was inspired by classic creations from the late designer.