This movie had so much potential that was honestly just wasted.
In my opinion, the thing that makes a horror/thriller movie great is the ability of the storyline to really explain what's going on. Like for instance Smile did a good job of that. They explained how when the infected person smiles at someone, they get possesed after the infected person dies. Then the movie proceeds to end on a cliffhanger, which tells us (the viewers) that this obviously isn't the end, and that there would be more movies to come.
In The Silence, they introduce some weird bat-like, man-eating creatures that they call Vesps. We don't get any explanation as to HOW those things came to be... they just.. did. And we have to accept that. There is no background on them whatsoever, and there's so many holes in their existence. Like how come no one else discovered them in the millions of years that they were trapped underground?
A little more than halfway through the movie they introduce some sort of religious cult?? We don't know where they came from, what they want, and they say something about "the girl", who I'm assuming is Ally, being fertile. What the heck does that even mean? There was no explanation to them AT ALL and they end up dying about 10-15 minutes after they're introduced. It seemed like the producers just wanted to give the family a quick obstacle to face so that it didn't seem like their adventure was too easy.
I don't hate the move because the acting was actually really good. The leader of the cult creeped me out a lot (especially how he was smiling), and I felt the bond between the family. It's just that the producers didn't give themselves enough time to fully express their ideas.
If they sat down and decided to be serious and make this a series of movies, I think it has the potential to become a big franchise, kind of like how SAW did.