Filmmaker Ondi Timoner felt the best way to tell the story of Robert Mapplethorpe was in a narrative-versus-documentary format. Mapplethorpe, the vaunted New York photograper who died of AIDS in 1989, was well-known for his photographs of controversial material, including of New York’s gay scene, and for his early marriage to rocker Patti Smith. “I don’t tend to make documentaries about people who aren’t alive