The High Lonesome Sound documentary (1963) - Roscoe Holcombe, Bill Monroe, and more

This is an AMAZING black and white film documentary about Kentucky old-time and bluegrass music made by John Cohen of the New Lost City Ramblers, one of the early 'revivalists' from the early 60's. I believe there are a few other documentaries from him, one on ballad singing and one on snake handling churches if I'm remembering right.