The Man in the White Suit (Blu-ray disc)

Eccentric Sidney Stratton (Alec Guiness) is a laboratory cleaner in a textile factory, who invents a material that will neither wear out nor become dirty. Initially hailed as a great discovery, Sidney's astonishing invention is suffocated by the management when they realise that if it never wears out, people will only ever have to purchase one suit of clothing.