153 minutes long because characters can't talk?

Rating: 5/10 (13 December 2013)

It's a great movie, sensational, effective thriller, blah, blah , blah. I don't want to repeat things that have already been said. I'll just say what annoys me. Most tension in this movie comes from it's characters being unable to speak. What's up with that?
1.So we got this guy, who obviously has something to do with the kidnapping of the two girls, and as it turns out, he was the one who lured them into the van. It was a sloppy kidnapping, they immediately caught the suspect, but guess what,he can't (?)speak. They said that he is on a level of a ten year old, but he behaves as he is on a level of a three year old, but still, he has a driver license(?). So we then come to all the beating,torturing and all the screaming :'Tell me where are they?' If he said: it took them to my mothers house, the movie is over. So he was so resilient to torture or simply he was to stupid to make a sentence that makes sense. The later makes more sense, but on the other hand, it makes no sense at all.
2.Then comes the priest who has a rotten corp in his basement. But he just mumbles. Like he's a 3 year old as well. He isn't able to say any useful information. Who's the dead guy, what's his name , how he came to him (or with whom, with what vehicle etc, etc..) He just can't speak intelligible.
3. Them comes the guy who steals kid's clothing, using pig's blood, hiding it with snakes. He's intelligent enough to recognize a cop, to escape him, to, at the first moment, when the cop shows at his home, fool him by saying '' I've never seen you before''. But when they need to interrogate him, he is suddenly like a 3 year old, drawing and mumbling and drooling like a completely retarded person who's unable to say one sentence that makes sense. So we still don't know anything and the movie goes on.
4.Then comes the girl that escaped, she's in the hospital, but of course, she is not able to speak. Or else she would tell us where she was held, and the movie's over.
5.And finally , when they rescue the second girl, she doesn't seem to speak as well. Or else she would tell them about hidden basement in the yard with entrance hidden under the old car. But no...
So somewhere around 80 min into the movie , I had enough. I know that they wanted that exciting, disturbing thriller, exploring moral bipolarity of every human, dark (metaphorically and literally with all the rain and pale colors). But for me this was to much and last 30 minutes was like a torture.