Trivia

Originally intended as a TV movie named "The Protectors", but released theatrically with this new name.

This was Diana Lynn's last film and final acting credit.

John Saxon and Ahna Capri would be castmates again three years later in Enter the Dragon (1973).

According to his book (Self-Amused, released 2021), Peter Funt, host of Candid Camera and son of Candid Camera creator Alan Funt, worked on this movie as a stand-in and a double for actor John Saxon. He also appeared as an extra in a couple of scenes.