George Lazenby chose to make this film rather than continue playing James Bond in the Bond film Diamonds Are Forever (1971).
According to a George Lazenby interview Jimi Hendrix was originally going to write the score for the film, but he died suddenly before filming could begin.
The film was made with an improvisational style. "We did it as we went along", George Lazenby said in an interview."There was a script but we didn't follow it - we were all smoking wacky tobacco."
The BBC showed the film on BBC1 in February 1981 10 years after the original cinema release. As of February 2023 it has not been shown on any UK TV station terrestrial, satellite or cable since that February 1981 screening or has been reissued on video/DVD/Blu Ray in the UK since a early video release in 1982 which was before the 1984 Video Recordings Act having not officially been submitted to the BBFC for a updated rating for a new video/DVD/Blu Ray release as of October 2023 since the original submission to the BBFC in 1971 (when it got the AA certificate for cinema).