Dar's black tiger is actually a regular striped tiger dyed black. The dye would wash off around the mouth whenever the tiger took a drink, so throughout the film the stripes are often visible around the mouth.
The eagle often refused to fly on cue so in order to shoot footage of it in the air it was dropped from a trapdoor in a hot air balloon.
The actor playing the young deposed prince was not allowed to be on the set at the same time as the tiger, so a short stunt person in a wig, photographed from behind, was used in those shots.
Don Coscarelli claims to have read all of Andre Norton's books as a boy. Norton is the author of a novel called "The Beastmaster", in which this movie is loosely based.
Director Don Coscarelli decided to set the story in a sort of Bronze Age milieu because he was a long time fan of Steve Reeves, Ray Harryhausen and sword and sandal flicks.
The producers fired the original animal trainer in the middle of filming and hired another one.
Although the film fared only modestly at the box office, it has become one of the most successful movies in history of cable-TV.
Don Coscarelli sold off his rights on the story and characters. He has no involvement with the sequels, nor the TV-series, and doesn't see any money from them.
An eighteen years old Demi Moore auditioned several times for the part of Kiri. Although she was Don Coscarelli's favorite choice, the producers decided to cast Tanya Roberts.