The plot is a variation of an old theme, but it comes out with a nice fresh coat of paint. A young research scientist invents a cloth that is everlasting and dirt resisting. The textile industry sees the danger signal and tries to buy him out, but he outwits them.
Particular tribute must be paid to the sound effects department. The bubbly sound of liquids passing through specially prepared contraptions in the lab is one of the most effective running gags seen in a British film.
Alec Guinness, as usual, turns in a polished performance. His interpretation of the little research worker is warm, understanding and always sympathetic. Joan Greenwood is nicely provocative as the mill-owner’s daughter who encourages him with his work, while Cecil Parker contributes another effective character study as her father. Michael Gough and Ernest Thesiger represent the textile bosses who see disaster. Vida Hope makes a fine showing as one of the strike leaders who fears unemployment returning to the mills.
1952: Nomination: Best Screenplay