Wow, this is just like the plot for Sanctum, even down to particular scenes (https://www.imdb.com/title/tt0881320/ https://www.imdb.com/title/tt0881320/) - minu

Wow, this is just like the plot for Sanctum, even down to particular scenes (https://www.imdb.com/title/tt0881320/ https://www.imdb.com/title/tt0881320/) - minus the movie drama, of course: "An underwater cave diving team experiences a life-threatening crisis during an expedition to the unexplored and least accessible cave system in the world." And I've always loved the tagline: "The only way out is down"