The movie was loosely based on the earlier Will Hay starring film Ask a Policeman (1939) which this remake's director Val Guest co-wrote.
The value of the artworks and paintings that had been stolen by the gang of art thieves was UK £1 million.
English filming locations feature in the movie included Bedfordshire, Borehamwood, Buckinghamshire, Bushey Heath, Dorset, Eaton Bray, Edlesborough, Elstree Studios, Hertfordshire, London, Lulworth Cove, St Albans, Wool, and Weymouth.