Filmed and set in�Alabama�circa 1950, the film stars�Danny Glover�as the owner of a traditional�blues�club that is failing and in danger of being taken over until he hires a young�electric guitarist�(Gary Clark, Jr.) to stand-in as the popular "Guitar Sam" in the hopes of attracting a younger crowd. The film also stars musician�Keb' Mo'�as a mysterious blind guitarist, actor/comedian�Kel...