Reasonable

Mockumentaries en found-footage appearantly must feature teens. Always. The subplots and themes within the tunnels appear a bit rushed and underdeveloped. But there are still some good scares and effective claustrophobic scenes down there too!

Great idea, somewhat dull

A swell idea that oozes potential. Execution however, is rather slow, simplistic and tame, so it does not quite reach the skies. Too bad. More ideas like this one though, please.

Messy

I'd like to think there is a deeper meaning behind the foul nastiness. But it felt like an unpleasant, loud and incoherent peak in some perverted minds' shock fantasies. 'Yeh so like there's skate dudes and then zombies come.' End of story. That parallel dimension thing was alright though.

Improves with age

Upon first viewing I was annoyed by unnecessary vague way everyone talks and the focus on their petty problems instead of the maze itself. And while these problems are real, upon second viewing the core adventure - with some mystery, action and horror - became more evident and enjoyable.

Full of letdowns.. just barely makes it to 'entertaining'

Kyle is now a miscasted dork. Sarah is now omnipotent and omniscient so all excitement is gone. The terminators scenes feel like a 'best of' rehash of earlier movies. It has an unrealistic and strange sterile look to it. The time travel has become a caricaturisation. Arnold was funny though.