In the film, Robeson’s character encounters just one episode of racism from a fellow miner, his friends defending him with the line ‘Aren’t we all black down that pit?’.
Yn y ffilm, mae cymeriad Robeson yn dod ar draws un achos yn unig o hiliaeth gan gyd-löwr, ac mae ei ffrindiau'n ei amddiffyn drwy ddweud 'Aren't we all black down that pit?’.