The Vampire Lovers
Starring Peter Cushing and Ingrid Pitt. This movie is loosely based on Sheridan Lefanu's gothic novel "Carmilla". Carmilla Carnstein is a female vampire who seduces a woman and draws her to the darkside. The movie is a pretty good vampire story, although some what sleazy in an exploitation kind of way. Kind of a typical Hammer movie from the 1970's.