Vampires in the Church

What if there were a vampire pope? What if there wer vampire priests? I googled "vampire priest" and got a lot of hits for the Paul Bettany movie Priest, which has a plotline about "vampire wars" and "priests." As far as I'm concerned, the more Paul Bettqany movies the better, but I've seen this one and it's a dark, comic book-y sort of fantasy and not what I was thinking about.