Well, it was just a bad movie, wasn't it?
To start, as a random Muslim who ended up watching this film, I hope that non-Muslims or even young Muslims who aren't very well-read, are intelligent enough to understand that this is a poor depiction of Islamic schools and what goes on in (most of) them.
Moving on to the film itself, I believe after the opening which was decent, the people behind the film missed out on something that could've been done in a much better fashion. All of a sudden, you're thrown into a pool of suspense, without quite clearly understanding WHAT and WHY. The film does not do a very good job at explaining the story, and consequently, the plot ends up being all over the place. Also, there appeared to be two main characters, and I'm not quite sure what about their personalities would have made me root for either of them. Overall, it felt like a concoction of ideas, as if the writer or the director just thought he had a couple of brilliant notions that he just could not choose between, so might as well put them all together. A big mess.
Additionally, the make-up and little bit of CGI used were both awful. And what in the world was that dreadful "villain laugh" from the antagonist towards the end?
The one positive I can extract is that the cinematography was rather impressive. Oh, and the acting was actually pretty good, especially from the actors playing the two main girls.
In conclusion, would I watch this a second time? No. Do I recommend you to watch it a first time? No.