I enjoyed the overview of black people in horror films, and being introduced to a couple of films that I missed when they were released. From scary black voodoo practitioners through "black guy who dies first" to (of course) Night of the Living Dead and on up to Get Out, a group of academics, directors, and actors talk about what the changes meant and how they reacted to it.
Why I don't rate it higher is that while the academics and screenwriters and directors had interesting things to say, the actors did not and said basically, only "man, I loved this." Not insightful. I suppose being able to have name actors in the cast means more people might watch the film, but if we're watching a film analysis documentary, maybe we care less about actors and more about the people who have insights they can better articulate.
Good info, half-wrong cast.