Pupi Avati, who worked on a film as an assistant director, declared that watching Piero Vivarelli at work taught him how to not direct a movie.
In the original comicbook, Satanik is not an old woman before the serum, but rather a disfigured young scientist.
In the striptease scene with Umberto Rahi, he's passing out 10 and 1 dollars bills.
Italian censorship visa # 50978 delivered on 1 March 1968.