Chevy Chase told Turner Classic Movies host Robert Osborne that he has never seen this film, which he considers his worst.
The female dog Benjean was apparently the only actress to ever refuse to do a scene with Omar Sharif, according to the official "Benji" website. It states: "Omar's acting style is so intense, Director (Joe) Camp reports, that Benji could feel his intensity, and freaked out every time Omar touched him. This broke Omar's heart, and he was afraid the dog hated him, which was, of course, not true. In the end, to get the scenes, Camp wound up putting on Omar's coat, and being his hands in the scene(s)."
The make and model of the flashy red sports car that Jackie Howard (Jane Seymour) drove, was a 1973 Alfa Romeo 2000 Spider Veloce.