Sweet Sweetback's Baadasssss Song

A young African American orphan (Mario Van Peebles) is taken in by the proprietor of a Los Angeles brothel in the 1940s. While working there as a towel boy, he is raped by one of the prostitutes at a young age. The women name him "Sweet Sweetback" in honor of his sexual prowess and large penis. As an adult, Sweetback (Melvin Van Peebles) works as a performer in the whorehouse, entertaining customers by performing in a sex show.

One night, a pair of white LAPD officers come in to speak to Sweetback's boss, Beetle (Simon Chuckster). A black man has been murdered, and there is pressure from the black community to bring in a suspect. The police ask permission to arrest Sweetback, blame him for the crime, and then release him a few days later for lack of evidence, in order to appease their superiors. Beetle agrees, and the officers arrest Sweetback. On the way to the police station, the officers also arrest a young Black Panther named Mu-Mu (Hubert Scales). They handcuff him to Sweetback, but when Mu-Mu insults the officers, they take both men out of the car, undo the handcuff from Mu-Mu's wrist, and beat him. In response, Sweetback fashions his handcuffs into a pair of brass knuckles and beats the officers, putting them both into comas. Read more on Wikipedia.