What is the true story behind the movie Sanctum?
What is the true story behind the movie Sanctum? Production. Sanctum was inspired by the film's co-writer Andrew Wight's experience with a 1988 cave diving expedition in Australia that resulted in 13 cavers becoming trapped in one of the world's largest underwater cave systems in Nullarbor Plain after a freak storm collapsed the entrance. Is Sanctum a monster movie? as Carl, the expedition's American financier. Alas, all for nothing. Sanctum is a stinker, a horror movie without a visible monster, a deep dive into shallow characters who bray at one another in a harsh English-based dialect I'm told is Australian....