Took two thirteen year old boys on a Sunday afternoon. Perfectly palatable combination of horror schlock (witches/demons/excorcisms) with medieval trappings (plague/crusades). Cage and Perlman look great in their crusader costumes BUT their line readings are straight 20th century. I guess if you are an actor just working to pay the bills this is what you do. Nice performances from the youngest cast members Claire Foy and Robert Sheehan who do read their lines as if they have careers ahead of them that need stoking. Not too scary and interesting enough and short enough at 90 minutes. All in all fine for ages 10 and up.
My twelve year old thoroughly enjoyed the movie and gave me detailed information on how the screenplay was different than the novels. He enjoyed the movie thoroughly and would rate it as excellent. I thought it was a well produced piece of tween fantasy with decent screenplay. Unless your kid is familiar with the books and/or Greek myths it will function as a slightly confusing action movie with good special effects.