LANVIN is enjoying something of a golden moment. The company has been grabbing headlines for dressing actresses including Amy Adams and Meryl Streep for the red carpet. Alber Elbaz, the artistic director, has guided it to profit for the first time in decades. And the Palais Galliera in Paris has dedicated an exhibition to Jeanne Lanvin, the brand's founder, with a display of over 100 items from the early 20th century.