In the Anchor Bay and Arrow Video presentations of the original film, Marisa Fabbri is credited twice (once in the opening credits, and again in the ending credits) while Erika Dario receives no credit. This error does not occur in the original Spera Cinematografica prints, the Lucertola Media DVD or in the "Kidnapped" cut.
When Doc looks up from tinkering with a car's engine in his first scene, the camera crew is reflected in his sunglasses.