There has been some confusion as to which comic property this movie is based. We were first informed that it's based on a TokyoPop comic and is described as a horror/Western... It was then pointed out that that particular comic bears little resemblance to the official plot synopsis which is:
"In a world ravaged by centuries of war between man and vampire, a warrior priest turns against the church to track down a murderous band of vampires who have kidnapped his niece."
I guess we will find out soon enough! "Priest" stars Paul Bettany and is directed by Scott Stewart. And its due to theaters on August 13th, 2010.