And frankly, I don't know which version this is, the US, or theatrical cut has an edited ending. I won't spoil it, but I will say that the US market has a proclivity for happy endings. This movie has no happy ending, but the UK, or unrated version essentially has a bonus scene after the US version. Either way it goes, the movie doesn't differ aside from the ending. Definitely worth watching, and if you do only see the US version at least search up a synopsis of the "alternate" ending.

Made the mistake of watching this when it first came out. Up until that point I somewhat enjoyed the unknown of caves. Well, that ended quickly. I can't even go into the local "Ape Caves" here in SW Washington without thinking of this movie. It was terrifying for it time. Oh heck, it still is. So nope. no caves for this guy thank you. I mean, this thing scared the crap right out of me.

I'm a huge horror fan and it's hard for me to find something that ACTUALLY scares me. My heart DID NOT STOP RACING the entire film. They didn't even need the cave crawlers—the anxiety and impending doom were so intense, it was hard for me to watch. Definitely recommend! Especially if you like As Above, So Below or 47 Meters Down!

If you're friends say "scary movies aren't scary" or "nothing will jump scare me"
This is the movie they need to watch
There is suspense, survival, digustingness, awesome jump scares, unexpected twists, girl power, death, blood, gore, etc
We watched this with our niece that said she could handle scary movies and let's just say there were some screams and popcorn thrown haha it's perfect, you definitely will want to keep the lights on at night after this one!

Interesting and unusual story, all-female cast which really works in the movie's favor. It's interesting to ponder what the movie would be with an all-male cast. Totally horrifying premise from my perspective, in terms of the claustrophobia-inducing spelunking, something I could NEVER do.

I will be taking ice axes whenever I go caving from now on. Mostly to end the lives of any traitorous friends I may have

I am stingy with my 5 star reviews. This movie deserves it. The scenero of this movie as a whole is frightening. Good production value and excellent acting.
You will be on the edge of your seat watching this.
Have to recommend it.

This is probably one of my favorite movies of all time. It features a great story, relatable and well-written characters (an all-female cast too, which actually makes the film better), deceptive set pieces, moody music, and impressive cinematography. Without giving anything away, this film is a gripping, harrowing, emotional, and surreal psychological thriller that is sure to never let your mind rest as you watch. Please watch this movie if you haven't already!