Annihilation 7/10
We finally get a movie about something truly alien, and in that regard we have a movie that is a full out horror movie.
I've heard this compared to "Arrival," but in that movie we have aliens that are ultimately benevolent.
In "Annihilation" we have an alien presence that isn't benevolent at all.
We have a small group of women (yes, this was pointed out) going in to investigate what prior military teams never walked out of. (The exceptions being our heroine's husband...or so we thought. And then Portman's character, she's telling the story of the movie)
But to say this alien presence is "evil" is to use a human frame of reference that really doesn't exist.
Hmf...When our heroine (played by Natalie Portman) is asked "What does it want?" She responds; "It doesn't want anything." In essence it's just too alien. Desire is a human thing that this Presence doesn't likely understand let alone care about such a thing. This Presence changes everything around it. And not just down to a cellular level either; space, time, energy, the "Shimmer" is how light refracts to it, which is miles wide.
When Portman's character is interrogated in the beginning, she is asked, "What were you eating? You had two weeks of rations and you've been in there for four months." (She can't remember) And when Portman's little group thought they spent the first night there, they realized that they had eaten several days worth of rations and couldn't remember getting to where they had woken up. They were unable to recall what they had did prior to that point in time.
Things take a dramatic turn for the worse...but then things aren't going to end well when you realize that simply entering the Shimmer was a death sentence as their very bodies become "infected." (The one character says she sees her own fingerprints moving, and we aren't sure if she's screwed up in the head) They come across a mutated crocodile, and then a mutated bear that really fucks them over. Our heroine makes it to the Lighthouse where the center of this Presence is at...and she comes across a recording of her husband and she sees horror.
The Presence eventually tries to copy her human form, and we see a vulnerability (maybe) as she lights the damn thing up with a phosphorus grenade...and we see it burn strangely...looking at its arms as if it couldn't comprehend it's own burning form. (Get the feeling it was transmogrifying the energy. I'd like to believe a nuke would hurt the thing, but it probably wouldn't affect it at all except to make it radioactive).
This movie made me think just how "alien" an alien could get. The closest analogue I drew from was Lovecraft's "Black Goat of a Thousand Young." And yet, I have the impression that that's probably still too much a human reference.
(I know that this is based on a book, and what I took from the movie could be completely off from the author's story, but I can only go by what I saw on screen. And if I recall, the author wrote only two books of a planned trilogy)