Sarah Jessica Parker and Glee's Dianna Agron were the big stars at today's Louis Vuitton show in Paris. SJP rocked a sheer white top created by her pal Marc Jacobs, the head of Vuitton's design team. She posed for a picture with Marc backstage and also mingled with Vogue's Anna Wintour, Harvey Weinstein, and iconic French actress Catherine Deneuve. Marc pulled out all the stops for the Fall 2012 presentation. It was held inside a court at the Louvre made up to look like a train station. A small train actually pulled into the space to reveal a pack of luggage-toting models. SJP approved of Marc's extravaganza, saying, "One of the great triumphs of all time . . . it was cinema, it was literature. It was wonderful!"