Trivia: Chief Mangosuthu Buthelezi, who played King Cetewayo in the film is actually a real-life distant descendant of the very same Zulu king he was playing. Small wonder the producers decided to choose him to play Cetewayo.
Trivia: Alec Guinness plays Marcus Aurelius, the father of Commodus (Christopher Plummer). In real life, Guinness was only 15 years older than Plummer.