Vampira DVD

Comedy horror directed by Clive Donner and starring David Niven and Teresa Graves.
Count Dracula (Niven) is the proprietor of a grand, old castle of horrors which attracts plenty of spending tourists.
The tourists see only the grandeur of the castle and the facade of horror, but Dracula is in fact a vampire.
While the tourists sleep he examines them to determine whether any possess a specific, rare blood type.
Dracula's wife died 50 years ago but he plans to revive her with a blood transfusion.
When Dracula is finally presented with the chance however, the process has some unexpected consequences.