"The problem with Dance of the Vampires was that they made the mistake of making the vampire comic and the vampire hunter serious, instead of the other way around. If they had kept it more like the original it would have worked."
I don't know the original film or the German version of the musical, but why do you say it would have worked to make the vampire a serious character and the vampire hunter a comic character? That doesn't sound like a good idea to me at all.