Highly enjoyable, tense from beginning to end

Rating: 9/10 (4 January 2019)

People always demand an "explanation" for the creatures. I'm personally satisfied not being given a "sci fi" explanation, like viruses or aliens, which may even take away from the charm of a movie like this. Same as "Children of Men", another great movie that doesn't bother to give an explanation of why women stopped getting pregnant, as an explanation is almost irrelevant to the theme and the suspense. Particularly if told from the stand point of the survivors: if this truly happened, no one may have been able to figure out why and how it happened, but they'd figure out the bare minimum to survive.
Great acting. Great characters. The tension to me was more important than the number of actual scares. Great ending (what more did you want out of it? There was enough closure in this one).
Some of the secondary characters could have been a little more developed. Also, a minor point: Some criticized how Sandra Bullock was running in the forest holding two kids, and I agree that they should have made it a little more believable as a person running blindfolded typically would seem more careful and scared of slamming into trees.
Otherwise great movie, I disagree with all the haters...