HBO documentary called 'Sing Your Song' about the life of Harry Belafonte.
It covers his life especially during the early Civil Rights movement.
I never knew this, but he goes onto saying in the documtary that in 1960, MLK was arrested in Atlanta for a traffic stop but they trumped up charges and were going to sentence him to work on the chain gang.
Belafonte and others in the movement went to the 2 running Presidential candidates and Nixon ignored them, while the Kennedys did something. JFK made RFK go down to Atlanta and got MLK out of jail.