Dan Reed\u2019s documentary \u2018Leaving Neverland\u2019 features interviews with two men who say Michael Jackson sexually abused them for years when they were children. Initially conceived as just one hour of television, Reed soon realized it\u2019d have to be longer. He talks about making this unflinching four-hour film and how, despite a lawsuit from the Jackson estate, HBO is standing behind \u2018Leaving Neverland.\u2019