I was watching "Frankenstein Meets the Wolf Man" and was trying to think of how many films had both the Frankenstein monster and Dracula. I came up with 10.
House of Frankenstein (1945)
Universal Studios, running low on ideas for their various monster film series, started combining them. This minor film made enough money that it spawned a sequel.
House of Dracula (1945)
A better film than its predecessor, a watchable time-passer.
Abbott and Costello Meet Frankenstein (1948)
The undisputed high point of the comedy duo's films, it was also Universal's last great film in its horror franchise. Bela Lugosi and Boris Karloff return to their earlier starring roles.
Frankenstein, el Vampiro et Cia (1948)
A Spanish language version of the Abbott and Costello film, done with a different cast and crew.
Assignment Terror (1970)
This Z-level film by Al Adamson stars Pul Naschy as the Wolf Man. It has been released as "Dracula vs. Frankenstein," which makes it easily confused with the next film.
Dracula vs. Frankenstein (1971)
A version of this film, also by Adamson, was released in 1969, confusing things even more. I found it dull, but it can be fun if you're in the right frame of mind. Zandor Vorkov is the worst Dracula in history.
The Screaming Dead (1972)
Jess Franco churned out hundreds of films in the Philippines, including this schlock, originally titled "Dracula vs. Dr. Frankenstein" and retitled for video, to avoid confusion with the films listed above.
The Munsters Revenge (1981)
The stars of the television series were reunited for this film, which plays exactly like an episode of the show. It's the only time the characters were seen in color.
Transylvania 6-5000 (1985)
This silly comedy has a small cult following, but I found it groan-inducing. With Ed. Begley Jr. and Michael Richards.
The Monster Squad (1987)
Fred Dekker obviously loves old horror films, so this is more of an homage than a parody. Not exactly highbrow, but fun.
So, what did I forget?
Raise the Jolly Roger
1 week ago