Filmed on location in the former Yugoslavia in August 1963, Jayne Mansfield was then four months pregnant with her daughter Mariska Hargitay (costumes carefully conceal Jayne's slightly protruding tummy).
A host of production problems, including financing, location and personnel issues, caused filming to be stopped several times, resulting in at least four different directors - regardless of their experience in musical comedies - working on the project at various times. One director, Ray Nazarro, specialized almost exclusively in "B" westerns and cheap hillbilly musicals for Columbia, and was hired because he just happened to be in Europe when a director was needed. Producer Albert Zugsmith also directed some scenes in the periods between when one director left and another was hired.
Ray Nazarro is credited as director in official Italian and UK records, because it was not changed when the Production company sold the project. He did not start filming, and his name was not credited on screen: the German version was credited to Gustav Gavrin, and the English dubbed version, with a different cut and shorter, was credited to Richard E. Cunha.
Jayne Mansfield's voice is dubbed in the English version by Carolyn De Fonseca, while Cameron Mitchell has been re-voiced by Dan Sturkie.
KwaZulu-Natal locations stood in for some of the sequences on the Greek island where the story ends.