After a member of the Analog Photography Users Group (APUG) pointed out its existence, a call for a translation was made, as the originally American production was dubbed in Dutch, probably in the beginning of the '60s, and therefore the original English soundtrack lost. A joint effort was setup, including me, Ray Rogers, Denise and Louis Ross, and others. Frank Bruinsma was contacted, who was kind enough to share the digitized version of the film with the APUG community for the purpose of adding subtitles.
Many thanks to Frank Bruinsma for making this film available, and to others who have contributed to this project! (via Marco Boeringa)