What is the fine-grained topic of the following text: The two-hour documentary features revealing interviews with the prominent figures of the era including: Barbara Ehrenreich, Daniel Ellsberg, Jesse Jackson, Tom Hayden, Arlo Guthrie, Henry Kissinger, Norman Mailer, Robert McNamara, Ed Meese III and Bobby Seale. Only return the topic.
Documentary featuring interviews with prominent figures of a specific era