a chemist develop a fabric that never get dirty or wear out and but it be see a a threat to the survival of various industry . in this delightful ealing studios comedy and guinness be marvelous a the mild mannered but persistent chemist . greenwood and with her sensual voice and play the love interest while parker be her harried father . thesiger be amuse a a patriarch of the fabric industry . while tell an engage story and the film also raise some intriguing question about science and the economy and and politics . it be adeptly direct by mackendrick and who would go on to make the ladykillers and the sublime sweet smell of success later in the 1950s .