The documentary movie "Give My Poor Heart Ease: Mississippi Delta Bluesmen" made by William Ferris can be seen here: http://www.folkstreams.net/film,80

"An account of the blues experience through the recollections and performances of B.B. King, Son Thomas, inmates from Parchman prison, a barber from Clarkesdale, a salesman from Beale Street, and others.

Give My Poor Heart Ease is one of a series of films made in Mississippi in the mid 1970s by William Ferris and the Center for Southern Folklore and produced in association with Howard Sayre Weaver. This field work is the basis for Ferris's 2009 book Give My Poor Heart Ease: Voices of the Mississippi Blues."