Went in wanting to like it. Unfortunately though, the story is very by-the-books, the world is a b-grade version of 'Mad Max' and the action has an over-reliance on CGI removing any weight from it.
The acting, particularly from our central protagonist, 'Priest guy' (played by Paul Bettany) and antagonist (Karl Urban), frustrated me with the two playing it overly dramatic and seriously for what the script presented them with. It could have been made into a fun '80's-esque' romp if both were self-aware enough and hammed up their performances. Overall, a mediocre film who undermined any sort of creativity of the source material (a Korean Comic) with a lousy script, weightless action and zero notable performances from their cast.
Put on in the background if its on TV, otherwise, just give it a miss.