I'm kind of an old guard type when it comes to horror movies, which is why I brought up Dracula (1931). Hammer films made a lot of vampire films during its heyday, and a lot of them are pretty darn good. Also, the classic soap opera Dark Shadows became a hit after it introduced the vampire Barnabas Collins to the series, which saved it from cancellation. It is a soap with a gothic feel, so it takes a bit of patience to get into as the action is rather slow.