Too many glaring mistakes for this movie to be enjoyable.

Rating: 1/10 (12 March 2018)

I had hopes for this movie, but I couldn't ignore the idiotic things the director/producer had these characters doing.

Mentally unstable crew. Supposedly crew was screened by a lone psychologist before going on the expedition. In reality, a psychiatrist would have been a part, if not in charge, of the evaluations.

No one knew what happened to the other teams who went into the void. So, Schrödinger's Cat would apply here. Based upon the information and the lack thereof, a team of trained soldiers would have been sent in with the women researchers.

Why send in a civilian paramedic, when a member or members of an Air Force Pararescue team would be more logical?

Except when they were actually firing the weapons, the dust covers on the rifles were closed during most of the movie. This is a problem with most movies where M-4s and M-16s are involved. If a round is jacked into the chamber then the dust cover would be open, allowing the spent shell to eject. No trained soldier would walk around in a hostile environment without having a round in the chamber.

Natalie Portman does not move or react like if she was trained for combat.

No biohazard gear was taken with them into the void.

No body armor was taken with them into the void.

After fighting with an unusually large mutated alligator, the crew decides to travel in small boats instead of going on by foot.

Always touching unknown plant life with bare hands.

Natalie Portman goes into the forest alone in the dark to look for a crew member that was taken by a large mutated bear.

After tossing her pack on the ground, Natalie Portman goes into the light house with just the one clip in her weapon.

I've written what I noticed after seeing the movie only once. I'm sure there is more to be discovered, I just don't have the desire to watch it again.