@gavman: Yep, that’s what it is. I hope you didn’t jump to the conclusion that my wanting to see Birth Of A Nation implies I agree with the sentiments it espouses! Does wanting to see a Nazi propaganda film make one a Nazi-sympathizer? Not necessarily.
In the book This Wheel’s On Fire---co-written by Levon Helm and Stephen Davis---Levon tells the story of The Hawks having a couple days off between shows in 1965, and as they were near the town in which they knew Sonny Boy Williamson lived (Helena Arkansas, where Levon was raised), they thought they would see if they could find him. They did, and ended up spending several hours playing music with him.
The fun ended when a couple of law enforcement officers showed up, asking what the Hell was going on. The Hawks were told to pack up and get out of town. That story was also told in abbreviated fashion in The Last Waltz. All The Hawks save Levon were Canadians, and hadn’t witnessed that degree of racism. Seeing Birth Of A Nation will---I’m guessing---provide context for me to understand the racism I witnessed in my own family. As the FBI agent in charge in the movie Mississippi Burning asks: "Where does this hatred come from"?