 Derived from Ernest Raymond's play "The Berg", it focuses on the sinking of a liner carrying a priest and an atheist author, both of whom must come to terms with their imminent deaths.Exterior scenes were shot on a ship moored on the River Thames but most of the film is set in an interior lounge, in a very static and talkative fashion.The ship's evacuation is depicted as taking place amid pandemonium but the actual sinking is not shown; although the director did shoot sinking scenes, it was decided that they should not be used.