Cannes Film Festival 2007
Pascal Le Segretain/Getty
Mischa Barton
Barton looked like Hollywood royalty in her Christian Dior by John Galliano haute couture gown. She wore the My Fair Lady-inspired dress to the Cinema Against AIDS benefit. She favored Dior at the festival, donning no fewer than three of the design house’s spectacular gowns.Also on instyle.com today:
Formal Dresses Under $400


