Sambizanga (1972)

Sambizanga is a 1972 film by director Sarah Maldoror. Set in 1961 at the onset of the Angolan War of Independence, it follows the struggles of Angolan militants involved with the Popular Movement for the Liberation of Angola (MPLA), an anti-colonial political movement of which Maldoror's husband, Mário Coelho Pinto de Andrade, was a leader. The film is based on the novella A vida verdadeira de Domingos Xavier ("The Real Life of Domingos Xavier") by Angolan writer José Luandino Vieira.

More at Wikipedia.