The Good:
The director did a great job of giving you the feeling of claustrophobia.
The lighting was done very well, in other words most of the movie was in near total darkness.
Suspension of disbelief is easy in this film.
The all female cast worked with the plot quite well.
Though this setting has been used in horror films in the past, I believe this film does the best at utilizing the subterranean.
The Bad:
I only remember 2 characters' names out of 6, ie to me only 2 of the characters were interesting (being basically the two lead characters).
The character motivations were strange in some parts, or maybe they were just strange to a rational person... what? You don't think I'm rational? I am so, and if don't believe me I'll make you regret it!!!
Overall: This movie was quite pleasing for a horror film. Its a breath of new life into a field littered with flapdoodle hoping to masquerade as mediocrity. If you liked what Dog Soldiers did for werewolves, then you should enjoy what this film does for spelunking (same director).
