I could give a rat's ass if the movie has anything to do with the actual storyline, as long as it's good and it has a Belmont fighting Dracula with a whip in a castle. Beyond those four elements, it doesn't matter to me what they do with the storyline if taking some major liberties allows them to make a good movie.
And if the movie is shit, which it most likely will be, I still could care less how faithful it is. In other words, I just want the movie to be good and to have the bare minimum elements of Castlevania.