Too contradictory and illogical

Rating: 4/10 (21 September 2014)

The movie is watchable and perhaps entertaining, but my wife did not like it at all. We both like thrillers, but this one was questionable at best as such.
Problems: A large group of teenage boys, on their own with no adult direction or counseling, and they all seem to get along well? Ha! I was in an orphanage where we were over 20 boys about the same age as in the movie, and I can tell you that the movie's portrayal is not realistic. These boys are at the prime age when sex is practically the most important thing in their lives, there are no girls around, and everything is OK? Finally, when a girl shows up, none of the boys has any desire for her? Ha!
And in spite of all this, some of the boys in the beginning appear to be fine with the notion of not trying to escape?
The filming of the boys fighting with the monster is poorly done and the audience cannot tell what is happening. All the scenes are very up close, short duration, and definitely nothing but confusing.
Contradictions (maybe mild spoilers?) The boys have managed to create a detailed model of the maze. Yet, at the beginning of the movie we are told that the maze changes daily, and based on the changes we see happen, there is no way that a model could be made. If the designated boys would be capable of 'mapping' a portion of the maze each day, by the time they mapped another portion the following day, the previous day's rendition would likely already be obsolete.
The monster evidently is man-made, and its legs, stingers, and so on appear to be made of steel. Yet, the boys can hurt and even defeat the monsters with crude wooden spears.