The added dimension isn't going to win any prizes - for the most part it is relatively pointless, and the world in which Priest takes place is not interesting enough to require any additional depth.
The ever-reliable Paul Bettany stars as the titular character. Stoic to the end, he's not your typical priest - more a deadly weapon, specialising in martial arts and weapons skills that make him the perfect killer. He exists in a time where vampires are a horrifying reality, battling humans for control of a conflict-ridden, barren wasteland punctuated only by large, soulless, church-controlled cities where humans live only for their faith and 'an honest day's labour'.
You don't watch films like this expecting an Oscar-winning tale, and action-wise, Priest is fairly solid, packing in a series of high-octane fights and chases for its duration. Helmer Scott Stewart knows where to put a camera in order to maximise the impact upon the viewer, and the oil-slick manner in which everything is filmed shows a director moving away from his previous field as a visual effects specialist and having a decent stab at mastering his craft.
Unfortunately, there's not a lot going on when knives and bullets aren't being flung around - the supporting cast of Cam Gigandet, Maggie Q and Karl Urban are given next to nothing to do and the dialogue serves only to move the film along to its next set-piece. Story-wise, it's paper-thin, and it's difficult to care about the motivation of any character when the levels of emotion on display resemble that of Mount Rushmore.
It is also strangely edited - 87 minutes is very short for a film with this kind of budget, and there's all manner of blunt cuts that give credence to the theory that there was once a longer, potentially better film here.
So, was Priest worth the wait? Not particularly, but for all its faults, it certainly has promise. Depending on box office performance, it could really benefit from a deeper, beefed-up sequel along the lines of Blade II. The good news is that there's plenty of source material available for a return to this mythology - it's just a shame that it's as shallow as the film it's spawned.