Wrong from the very concept or main vehicle used for the story.

Rating: Null/10 (18 September 2018)

So what's the use in watching the rest of it unless you want to see the stand alone performances of the actors or the camera work.
That might be interesting enough to people who would like to see how foolishly vacant the director managed to make Gibson, Phoenix & the rest of the cast look in this movie, which might prepare you for the more extreme states of catatonia of Zooey Deschanel & co. in the later Shymalan offering, The Happening.
Obviously those that overlook the water 'thing' in this film only consider water that is humanly visible or water in obvious & copious liquid appearance. Even then, we do sweat & spit & piss water so it's quite unavoidable on this planet in any form. The aliens in this instance cannot even enter the atmosphere without knowing or feeling this. Are they so immeasurably unintellgent as to be capable of space travel & survival across space & not be able to figure the simplest of natural & universal facts out?
The air all over on the planet is filled with minute traces of water especially the humid tropical areas. Even people are more than 50%. water. Babies are almost 80% water. When they enter the atmosphere alone, the planet is enveloped in a blanket of dense water moisture that cycles from the ground to the sky. The whole planet would be toxic to their system & they would feel ill or die in no time if water is toxic & fatal to them. They wouldn't stand a chance to even fight a human let alone live long enough.
Could they be that desperate & mindless to have had the ability to travel the universe better than humans & not pick the majority of planets available free of water nor figure out that humans are probably intelligent enough to figure out some basic things like water. I mean they are advanced enough in space travel to indicate that they might do without oxygen very well & be smart enough not to carelessly assume they are dealing with totally unintelligent life without noticing a few immediate & obvious telltale signs that humans are not unintelligent & that the existent water on this one planet is absolutely inhospitable to the survival of their kind as compared to so many others that don't pose such an absolute no no...it's a no brainer that those aliens should pass on & stay away from the planet earth as one should pass on & stay away from this movie.
Also, if we have to take the circumstances of this film further, it wouldn't take long for any person to notice how these aliens stay away from water of any source, seeing that we have water all around us at anytime, every time, everywhere.
Even our inadvertent spit when we speak would hurt or kill them.
We can literally & figuritavely piss them off to death too. They wouldn't dare touch us when we sweat. Hell, they can't even breathe or walk without running into walls of water molecules present all over the earth. According to the given rules of this film, their best chance of surviving a single moment on earth might be to wear special protective suits or try the deepest driest deserts like the Sahara.
The whole alien concept of this film has gone to a whole new ludicrous & laughable level.
Come on now, those who missed this or won't acknowledge this gaping major flaw that this film's whole existence stands on, please show some basic sense.
No more excuses for Shymalan on this one please!