Sanctum (2011)

Director: 

Alister Grierson

Writers: 

John Garvin (screenplay), Andrew Wight(screenplay)

Stars:

 Rhys Wakefield, Allison Cratchley and Christopher Baker

Genre:  Action | Adventure | Drama | Biography

Plot:

An underwater cave diving team experiences a life-threatening crisis during an expedition to the unexplored and least accessible cave system in the world.