PG-13 | | Action, Adventure, Horror
Filmed mainly in Romania, a country with over 12,000 registered caves.
Mike - Caver #1:
It won't be so funny if we end up in a Romanian jail.
Ian - Caver #2: Relax. Nobody's been up here in years.
When asked if he is okay, one of the scuba divers gives the thumbs up signal while underwater. In scuba diving, thumbs up means ascend to the surface.
$6,147,294 28 August 2005