21. Penitentiary (1979)
Director: Jamma Fanaka
Stars: Wilbur 'Hi-Fi' White, Leon Isaac Kennedy, Thommy Pollard
Jail doesn't sound like a good place for a dude who calls himself "Too Sweet," but the film's hero fits his moniker as an innocent man sent to prison. After Too Sweet learns to defend himself, he's convinced to join the prison boxing tourney to fight for his freedom—but prison goon Half Dead stands in his way. D-Block!