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."