Undeveloped characters let down tension-filled ‘Sanctum 3D’

Danger lurks down under as a diving team exploring a cave system is forced to go deeper and deeper when a storm floods the caverns … all enhanced by the 3D, but not by a weak screenplay that fails to give a true depth to the threatened divers.

Director: Alister Grierson

Cast: Richard Roxborough, Rhys Wakefield, Ioan Grufford