What a STUPID movie

Rating: 3/10 (21 April 2018)

How people can find this movie smart is beyond me.
How hard would it be to record a scream, Place a speaker in the middle of a dam of petrol, or dynamite or other kinds of explosives and turn the volume to 11 (you don't really need it loud either, they can hear the smallest bump from 100's of 100's of meters away (km even?), but not a person breathing heavily in pain 1m away. Just make sure to be some distance away, since they are always, 5-10 sec away, no matter where you are, even if its only 3 of them. The moment they attack the Source of the noise, just press the trigger and BOOOOOM no more aliens.
Or to make the Movie 20 min longer, Place 10-15 speakers around and blast some Death Metal on full (or Red Hot Chili Peppers, that worked at Guantanamo) blast and all aliens would flee the planet in Seconds
AVOID!