Eyes on the prize is a documentary that chronicles the civil rights movement.
Its available on you-tube in many parts (I haven't yet seen them all) but each covers a specific time span/ issue, which is useful if there's a particular area you want to focus on.
it's extremely detailed, with some rare film footage
I actually found the earlier episodes very useful. Footage a a young King etc.
This episode includes a feature on Mohammed Ali, and civil rights impacting on universities
Clay .. "I just turned 22yrs old, I must be the greatest.. I am the king of the world.. I'm pretty.."
Reporter - "hang on.. you're not that pretty.."
nice song huh