"Cash on Demand" represented the continuation of a successful formula utilized by Hammer Studios. Hammer frequently adapted popular and well regarded radio and television serials as feature length films. In the science fiction category, Hammer produced three separate feature length "Quatermass" films after the television serials created a stir.

"Cash on Demand" originally was broadcast as a 1960 television drama entitled "The Gold Inside." In fact, Andre Morell and Richard Vernon, appeared in the television program. Director Quentin Lawrence handled both the television show and the full length movie. The principal change was that Peter Cushing was cast in the lead role in the film adaptation, replacing Richard Warner as "Mr. Fordyce."

Interestingly, Cushing and Morell had scored a great success in a superior television adaptation of George Orwell's "1984." Cushing played "Winston Smith" while Morell was the Inner Party interrogator, "O'Brien." For the first British feature film adaptation, however, Cushing and Morell were replaced by Edmond O'Brien and Michael Redgrave respectively.

Both Cushing and Morell would feature in various Hammer horror films and as the "Noir Alley" introduction states they were paired as Sherlock Holmes and Dr. Watson in Hammer's version of "The Hound of the Baskervilles." A projected Sherlock Holmes film series did not materialize at Hammer, but Cushing would play Holmes again on weekly television and in made for television movies

During the 1950s, Hammer teamed with Robert Lippert to issue some "B" budget film noirs shot in the United Kingdom with American leads such as Paul Henreid, Lizabeth Scott, Barbara Payton, George Brent, Hillary Brooke, Alex Nicole, John Ireland, Richard Conte, and Dane Clark added for US market marquee value.

Andre Morell married actress Joan Greenwood. His habitual cigarette smoking hastened the end of his life. Reportedly, Morell sometimes smoked sixty cigarettes daily. He died of lung cancer at the age of sixty-nine.