Corrected entry: In the second half of the film, after the remaining cavers are trying to escape the creatures, there is a scene where one of the girls attempts to slide through a hole. She hears something behind her, turns and shines her torch around the cave and discovers that several of them are there watching her. She then jumps in the hole and starts to crawl away as quickly as possible. The mistake is to do with the lighting. In the shots which face her, with the small hole behind her, the cavern is bathed in green light from the fluorescent tube. However in the shot showing the torch moving around her and revealing the creatures, there is no green light it is pitch black. obviously for dramatic effect. The green light is very strong and lit up one of the caverns earlier, why not this one.
Corrected entry: When the girls reach the cave, the blue truck parks and the BMW parks on its left side. When the last girl reaches the surface, she gets it the blue truck. When she goes to the truck, the beamer isn't there, But when she pulls out its on the left again.
Corrected entry: Obviously these girls are amateurs, I do not believe any responsible caver would throw flares in a first descent, or that a seasoned climber would place a cam upside down (second cam placement shown in first hole crossing) and last but not least, not lock off a belay resulting in her partner's fall and hand injury.jACKAROOBEAR
Corrected entry: In order for there to be a gene pool diverse enough to allow the creatures to breed successfully for more than a few generations there would needs to be hundreds of them. From their eating habits they are primarily carnivores. It is highly unlikely that there would be enough food for a population of this size within range of the caves.
Corrected entry: As the woman is driving away from the cave at the end of the movie, the license plate on the front of the Bronco is from North Carolina. The license plate on the back is from Montana.
Corrected entry: When one of the girls is looking for climbing equipment, but doesn't have any with her, she says, "Oh f***." but her mouth doesn't move.
Corrected entry: Near the beginning when the girls reach the first large cavern lit by the red flares, a crew member can be seen in the lower left hand corner hiding behind one of the rocks. It is not one of the monsters, as you can see a well trimmed beard and mustache on their face.
Corrected entry: After the girls get caved in they travel through the cave and come to a drop, one of them throws a rock down to see how far down the drop is and it makes a "Clang" sound. At the end of the film the three of the girls are chased back to that point, two of them are killed by the creatures and one jumps off the ledge but she hits water. Water doesn't make that sound.
Corrected entry: After the girls are caved in they come to a huge drop, one of them throws a rock down to see how far down the drop is, when the rock eventually hits the bottom a loud clang sound is heard. Later a few girls are chased back to that point, two of them are killed the other chooses to jump off the ledge, but she hits water. water doesn't make loud clang sounds.