Dracula: Prisoner Of Frankenstein

Dracula: Prisoner Of Frankenstein (Original Title: Dracula Contra Frankenstein) is a 1972 spanish horror film directed by Jesus Franco, written by Jesus Franco and Paul D'Ales, and starring Dennis Price, Howard Vernon and Paca Gabaldón.

Plot
Dracula kills another innocent victim and Dr. Seward decides it's time to wipe him off the face of the earth. Armed with a hammer and a wooden stake, he arrives at Castle Dracula and duly dispatches the vampire Count. Next day, however, Dr. Frankenstein arrives with his assistant, Morpho, and a large crate containing the monster. Using the blood of a pub singer who has been abducted by his creation, the doctor brings Dracula back to life and uses him for his own ends. The Count and a female vampire continue to terrorize the town, so Dr. Seward once again sets out for Castle Dracula. Unfortunately, he is attacked by the Frankenstein monster and left for dead. Amira, a gypsy, rescues him and summons up a werewolf to do battle with the forces of evil.