I somehow expected this movie to be hard and dark, but it turned out to be a comedy, which seriously lacks humour. Therefore the bestial scenes of the movie are terrible, with the antichirist at the end, and so is the humour which just can't make you laugh.
If you like to watch a confused priest, who wants to act funny and prevent the apocalypse to happen then maybe this is your movie, but definitely not the movie for me :P My personal opinion is that this movie really sux, and i had to write that down, because i saw the ratings here on the movie and expected something good.
BTW: I also know the heavy metal scene in Madrid and death metal concerts never looked like this! :D