 After the success of their earlier motion picture  _Master of the World (1961)_ (qv), American International Pictures  had planned to make another film based on a Jules Verne (qv)  story, "In the Year 2889", however this project was later shelved. A  few years later, when Larry Buchanan was given the script of AIPs  earlier film _Day the World Ended (1955)_ (qv) to remake, a new  title was needed. Since AIP had already registered the "In the Year  2889" title, it was tacked onto the Buchanan film.