"When The Levees Broke: A Requiem In Four Acts"
The way I felt watching it reminded me of the way I feel when Lena Horne sings "Stormy Weather" in her "Lena Horne: A Lady And Her Music" Broadway recording. Something about the beauty in righteous rage that makes you cry and feel hopeful all at once. I can't really explain it, but please see it if you can.
Here's an interview with Lee: