A while back, I wrote an article about essential blues movies. One of them was Black Snake Moan, featuring Samuel L. Jackson and Christina Ricci.
Blues lovers should watch the movie immediately!
I was listening to the soundtrack again last night and it's amazing to hear Jackson sing and PLAY the blues. He spent a year practicing several hours a day on the guitar.
Here's a solo performance from the soundtrack, called "Just Like a Bird Without a Feather" (music starts at 00:40) :