The acting, directing, filming are all fine but, even if you are devoid of any understanding of how sound works, the movie itself provides more than enough information to contradict its own premise and cause its own downfall.
Had the movie been about a family that is isolated for some reason (camping trip or remote cabin perhaps) and somehow becomes trapped by monsters and have to figure out how to survive it would have a relatively enjoyable film. As it stand though, anyone exercising the most rudimentary of critical thinking skills will find the premise that for more than a year the entire world has been at the mercy of creatures who are easily fooled, easily distracted, have an easily exploitable weakness, and are relatively easy to kill simply too unbelievable to enjoy even without the absurd corn silo scene.
Had the movie been about a family that is isolated for some reason (camping trip or remote cabin perhaps) and somehow becomes trapped by monsters and have to figure out how to survive it would have a relatively enjoyable film. As it stand though, anyone exercising the most rudimentary of critical thinking skills will find the premise that for more than a year the entire world has been at the mercy of creatures who are easily fooled, easily distracted, have an easily exploitable weakness, and are relatively easy to kill simply too unbelievable to enjoy even without the absurd corn silo scene.