A lot of people don't know this, but in the early hay-day of Universal Pictures, they would film movies with two casts. Day time would be the English speaking crew, and at night a Spanish speaking crew would come in and film the same movie, in Spanish! In the day, dubbing and subtitling wasn't really possible, so this was the next best thing. Unfortunately, many of these Spanish films haven't survived. But a great one did, Dracula 1931.
I'll let this video give you some more info on it. Sorry the host of this show is kind of an old douche who can't wear his hat correctly:
If you want to find this movie, it's available on the "Dracula: Legacy Collection" dvd box set. It even has a short interview with Lupita Tovar, Mina in the film. She was a real looker back in the day! Universal released a box set for Frankenstein, Mummy, Dracula, Creature from the Black Lagoon, and The Invisible Man as well. I have them all, they're good stuff. I've probably watched The Invisible Man and it's sequels a million times.