I tend to like the classic horror films of Hammer, Universal, and American International, and "Vampire Lovers" is an esteemed favorite. There are many elements skillfully blended in this fine production, but the central appeal is Ingrid Pitt who breathes passionate, undead life into her role. Her impressive acting ability is matched by her smoldering screen presence and beauty. She is perfectly cast in this role. Wow, did the people who made this movie ever know what they were doing. The costumery, the lighting and photography, the staging, the acting and direction, all combine seamlessly for a stunning spectacle to be savored over and over again. This is the movie that single-handedly minted the "lesbian vampire" as a major cinematic motif, and set the standard for comparison that later entries in this genre would forever be judged by. I doubt we would ever have had such films as "Vampyres," "Vampyros Lesbos" or various Jean Rollin movies (not to mention Hammer's other Karnstein trilogy entries) without this film. And this movie could never have been as good without Ingrid Pitt. Her command of acting nuance is really something. Check out her facial expression when she's in the broken-down coach and Laura, all excited, tells her: "You're to stay with us!"