Interesting fact:

Vampire movie buffs will surely know the 1977 acclaimed remake of "Nosferatu," called "Nosferatu the Vampyre." But did you know director Werner Herzog produced two versions of the film, simultaneously, to appeal to English-speaking audiences? Scenes with dialogue were filmed twice, in German and in English, using the actor’s own voices rather than dubbed versions. Herzog has said that he considers the German language version to be the “culturally authentic” one.