Sir Christopher Lee, Jon Finch, and several other cast and crew were nearly killed when filming an action scene went wrong.
Although the movie was filmed originally for British television, it did receive some theatrical showings.
Originally intended as part of a TV anthology series to be called Silhouettes.
It was planned as a TV Movie and was offered to ABC in the US. as a package with Divorce His Divorce Hers and also CBS and NBC with a cinema release in the UK.