It seems Mandy Moore was the hit of the Sundance film fest, with movie distributors (including the Weinstein brothers) "in a fierce battle" over her new film Dedication. It's not just industry folk who have fallen for the star - Nicole Richie's ex DJ AM also appears to be smitten. "The two were making out on the couch," said a source at the Lotus Lounge set up for the fest in Park City.source