Co-financed by Arthur Cohn, this film was shot in English, so that the lip movements of the entirely German cast would match the English dub which was later recorded in the US. All of the main cast dubbed themselves in the German version, with the notable exclusion of Arthur Brauss who was unavailable to re-record his own lines due to scheduling conflicts. The original English language track as recorded on set is now considered to be lost.
Shot in 1968, but not released till 1970.
After its theatrical release, this film has never been released on any home video format or broadcast on TV. Only in 2015, the film was released on Blu-ray/DVD.