Black Diamonds (1932)

Inspired by the Cadeby Main pit disaster, this is former miner and amateur director Charles Hanmer's innovative and audaciously ambitious feature debut. It's the tale of brassy Yorkshireman John Morgan's (played by Dewsbury's Beckett Bould) quest to convince an MP to finance a film about pit life. Threading stories about safety and technology with sketches of miners' hobbies, it's a holistic portrait of Barnsley pitmen.