DRESS, AND REPEAT: Carla Bruni-Sarkozy selected a white cashmere cocktail dress by Dior for the official Bastille Day parade in Paris on Tuesday. But a change of dress for the Elysée garden party proved that, rather like another high-profile First Lady, Bruni-Sarkozy is no prisoner of the latest season or wearing the same dress twice. The fashion icon changed into a déjà vu monochrome dress from Chanel’s 2008-’09 cruise collection that she wore to a Hadassah fund-raiser in Paris this March.