I was not around in 1978, and I guess I am glad, as I would have been disturbed beyond belief by the event that occurred at Jonestown.
Obviously I was aware of Jim Jones and the People's Temple cult, and the kool-aid suicide. I was NOT aware of how much footage and information there is about the cult and Jones.
I stayed up till 1:30 to watch this on PBS on Tuesday night, and I recommend (if you can handle the content) you find a copy or a show time on PBS and view this extraordinary story.
This film disturbed me greatly, but it is still fascinating and uncomprehensible how some 900 people committed suicide at Jones's command. Never underestimate the power of group-think.