Originally done by BBC 4, we just got this on Sony DVD. I've always loved the myth of Robert Johnson as much as his music, and this little doc (72min) does a wonderful job of exploring both aspects of this legendary blues man.
Narrator John Hammond retraces and re-enacts the research of blues scholars Mack McCormick and Gayle Dean Wardlow, travelling the Delta and uncovering a surprising amount of documentation about, and individuals related to (some possibly by blood) the life and legacy of Robert Johnson.
Supported by a great selection of his few recordings that rise and fall from the background audio, almost as if still struggling to be heard.