Paramount bought the rights to the Swedish home video market after watching only 20 minutes of the film.
Was a commercial failure in Sweden due to not being able to find Swedish distributors. The biggest distributor in Sweden did not want to give it a big release and did not give it much promotion thinking it was too low quality. Ironically it was by far the most popular Swedish movie in international markets that year.
First horror film to be shown in North Korea
First Swedish vampire movie.