Dr. Goldfoot and the Bikini Machine partially parodied the James Bond movie Goldfinger. This sequel was released about a year after the next James Bond movie Thunderball and also spoofed that Bond movie too as Dr Goldfoot is seen at times wearing an eye-patch like the villain Largo in Thunderball.
Dr. Goldfoot and the Bikini Machine was only a moderate box-office success in America but a big hit in Italy and as such this sequel was shot in Italy with an Italian director Mario Bava and with two Italian comedic movie stars, Franco Franchi and Ciccio Ingrassia.
About a six months before this film was released, studio American International Pictures launched a 'Bikini' title picture, The Ghost in the Invisible Bikini, itself being released just six months prior to this movie's precursor, Dr. Goldfoot and the Bikini Machine.
Actor Vincent Price plays multiple-roles in this movie including Dr. Goldfoot, General Willis and even in one scene is seen in drag.
Apparently, director Mario Bava tried to withdraw from directing this film but was contractually obligated so had to see it through.
Doctor Goldfoot's nickname is Dr. G.
Dr. Goldfoot is the only character to appear in both Dr Goldfoot movies, this film and its precursor, Dr. Goldfoot and the Bikini Machine.
Second and final Dr. Goldfoot movie. The first had been Dr. Goldfoot and the Bikini Machine released a year earlier.
The acronym of the organization SIC in this movie stands for 'Security Intelligence Command'.
The character name of Hardjob (played by Moa Tahi) is a parody of the Oddjob henchman character from Goldfinger.
The Dr Goldfoot character is so named as he wears both golden pixie slippers and a black and gold jacket whilst it is alluded to briefly in Dr. Goldfoot and the Bikini Machine that Dr Goldfoot actually has golden feet.
The English language version of this film was re-written, re-edited, and re-scored without the involvement of director Mario Bava whose post-production imprint was only left on the Italian language version of this film.
The Italian version of this movie has top billing for Italian comedians Franco Franchi and Ciccio Ingrassia over Vincent Price and Fabian who have top billing in the English language version.
The Italian version of this movie runs about 5-7 minutes longer than the English version. It includes more screen time for Italian comics Franco Franchi and Ciccio Ingrassia.
The movie featured Italian comedians Franco Franchi and Ciccio Ingrassia who had appeared in their own Goldfinger spoof, Goldginger (aka The Amazing Doctor G).
The word 'semifreddo' in the Italian language version's title is a jokey reference to the name of an Italian ice cream dessert called semifreddo which literally translates into English as 'semi-cold'.
This movie and its precursor Dr. Goldfoot and the Bikini Machine are two of the key films that have been said to have been a major influence on the Austin Powers film franchise.
This movie was originally intended to be a sequel to Goldginger (aka The Amazing Doctor G), Italian comedians Franco Franchi and Ciccio Ingrassia's Goldfinger spoof. When American International Pictures came on board as a co-financier, it was decided to shoot one movie but make two identifiably different films, one each for the Italian and English speaking markets, the Italian was to be a vehicle for the two Italian comedians and the English a Dr. Goldfoot sequel thus achieving two commercial goals of two different national investors. As such, this film was edited into two completely different movies.
This movie's Italian version's title is a parody of The Spy Who Came in from the Cold. This title translates literally into English as "The Spies Who Came In From the Frozen Custard", or more commonly, "The Spies Who Came In from the Semi-Cold".
This picture was released in the UK as 'Dr. G. and the Girl Bombs' due to legal action launched by a London medic called Doctor Goldfoot.