This film received the first "No Animals Were Harmed" (more specifically in this instance "[Animal Actions] Supervised by") onscreen credit ever issued to a theatrical film by the American Humane Association, the oversight organization responsible for monitoring animal actors during productions.
In September 1972, Dimension Pictures was widely exhibiting this film on a double feature with The Twilight People (1972).
In My Life on the Dog List (2008), Milan admits this film is his favorite. He says it has been watched by everyone in his family at least a hundred times.