I don't normally write reviews but I just read some of them & thought they were a bit harsh.

It seems some people like to be spoon-fed every little detail & plot point when they watch a movie. "Why didn't it explain this? Why didn't it show that? Why were some people affected differently?" etc... ffs!

It's a movie about an unseen terror which makes people want to hurt themselves & others once they see it. That's pretty much it. What we get to watch for a couple of hours is how a small group of people choose to deal with the situation they're in. Some of it is predictable, yes, but people are generally quite predictable & clichéd in real life, too.

I personally felt the acting, special effects, cinematography, sound, etc... were all very good. Reason enough to watch the film.

On top of that, there were elements of other movies I've enjoyed over the years which could be found in this. The Crazies, Dawn of the Dead (remake), The Happening, Blindness, World War Z, The Mist, etc...

As a father of two young boys (6 & 3), I also found the scenes where Bullock's character struggles to keep the two 5 year olds safe (in the boat, in the woods, etc...) particularly distressing as it was all too easy to imagine how my own kids would be wandering off in different directions & constantly wanting to remove their blindfolds.

In summary, it's a decent enough way to spend a couple of hours if you're into this sort of genre (post-apocalyptic, horror, science-fiction). If, however, you're wanting to watch something with a clearly defined start, middle & end, & with every last detail explained to you, then save yourself the potential anguish & maybe watch something else.