Well, after watching the trailer for Sanctum, one thing’s for sure. I really don’t want to go caving. Produced by James Cameron and inspired by true events, the film follows a team of underwater cave divers on a treacherous expedition to the largest, most beautiful and least accessible cave system on Earth. When a tropical storm forces them deep into the caverns, they must fight raging water, deadly terrain and creeping panic as they search for an unknown escape route to the sea. Starring Ioan Gruffudd and Richard Roxburgh, the movie uses the same 3D photography techniques Cameron developed for Avatar. It certainly look like it could be a bit intense, even if it does lack the creeping baddies of The Descent. Click below to watch the trailer.