We have run a lot of threads on the movie and if you'll enter songcatcher up in that filter box and set the refresh for 1 year you'll find all of them.

Appalachian Music is discussed all the time around here and you'll find a lot of archived threads on individual songs. I'm glad you have found an interest in the music of the southern mountains and if you'll hang out here a bit you'll find a lot of knowledge going around. Pick some of the ones from the movie or just try a supersearch on some of them and you'll be on your way. I'd start with the songs and recordings of Jean Ritchie, the Mother of the Appalachian dulcimer (posts here at Mudcat as "KyTrad") and also check out the many recordings available at Folk-Legacy Records. Ordering anything from them gets you a set of liner notes that's an education in and of themselves!

Spaw