After viewing the film for the first time, author John D. MacDonald wrote, "I was so convinced it would be utterly rotten, that I was pleased to find it only semi-rotten."
Robert Clouse was chosen to be the director of Opération Dragon (1973) after Bruce Lee watched the choreographed fight scene turn into a real fight on screen between Rod Taylor and William Smith.
Was planned as the first of a series to be released every 18 months. Bad box office killed the idea.
Arrow created a "special" shirt design called "The McGee" for Taylor to wear. When the movie flopped, so did the shirt.