The Cannes Film Festival's coveted Palme d'Or top prize was awarded Sunday to Italian director Nanni Moretti's The Son's Room, a critical and audience favorite at the festival. U.S. films, including the weekend box-office openers Shrek and Moulin Rouge, went away virtually prize-less, except for tie-wins by Joel Coen and David Lynch for the director's award. Coen won for his The Man Who Wasn't There, and Lynch won for his Mulholland Drive, originally produced as a pilot for a television series that was turned down. The French film The Piano Teacher received three awards, two for its stars, Isabelle Huppert and Benoît Magimel, and the Grand Prix for director Michael Haneke. The best screenplay award went to Bosnian Danis Tanovic for his No Man's Land, while the Golden Camera, an award that goes to a first-time director, was presented to Canadian Zacharias Kunuk for his Atanarjuat The Fast Runner.