He prowled the streets of Manhattan looking for attractive young women, usually in their early 20s, sometimes college students, on occasion a high schooler. He approached them in Central Park, standing in line at a bank or drug store or at a copy center while they worked on their resumes. His opening line had a few variations. One went: “My name’s James Toback. I’m a movie director. Have you ever seen ‘Black and White’ or ‘Two Girls and a Guy’?” Probably not. So he’d start to drop names. He had an Oscar nomination for writing the Warren Beatty movie “Bugsy.”...