Linda Blair was 14 when this film was made and 15 when it was released. However, the other girls at the reform school in the film were much older than the ages they portrayed. Two others who are credited were in their mid-20s when this was filmed, as Nora Heflin and Tina Andrews were 24 and 23, respectively, while Janit Baldwin was 18 or 19. All of these girls were older than Mitch Vogel, who was supposedly portraying her 20-year-old brother (he was actually 18 at the time).