Old Dracula (aka Old Drac; Vampira) [1974]
Here's an interesting take on the vampire legend: Dracula portrayed as an Englishman (David Niven) who has recently transformed his castle into a tourist attraction in Transylvania. Secretly while inviting a magazine group to do a story about it, Dracula has ulterior motives.
Strangely, it's not him preying on the young women, turning them into the undead. But instead, acquiring their blood to help his ailing wife he placed in cryostorage, Vampira (and no, not the same one from Plan 9).
Seems about fifty years ago, Vampira bit a peasant with anemia and it nearly did her in. Fortunately after years of research, Drac has found the correct blood to cure her of her malady. Except when he performs the transfusion, an unexpected result occurs where Vampira becomes a black woman (played by Teresa Graves, no pun intended). Although Vampira thinks her husband is clever, Dracula wants to remedy the situation, but cannot recall which girl has the proper blood type.
So they embark on a trip to London, with hilarious results as Vampira snacks on a fellow who has come back from a 'rejuvenation' clinic, admitting he has been transfused with sheep's blood.
Anyway, Drac tracks down the photographer and puts the bite on him. But rather than make him into a vampire, Drac enthralls him in helping to find the correct girl by extracting the proper blood type.
The rest of the film is hilarious for the fact this isn't quite the vampire film one would expect but it's interesting seeing Niven's take on the classic Transylvanian. And I definitely know RiffTrax should do this one, even if it is a comedy.