In this memorable calamity-at-sea epic from disaster-movie specialist Irwin Allen, an ocean liner turns turtle under a tidal wave and survivors fight their way to the ship's underside in an attempt to find an exit. The religious aspects of Paul Gallico's source novel get buried under a barrage of set pieces as director Ronald Neame cranks up the suspense and minister Gene Hackman leads a group of uptight passengers to what they hope will be their salvation. There are wonderfully poignant performances by Ernest Borgnine, Stella Stevens, Shelley Winters and Red Buttons, but it's always Hackman's movie - not even the remarkable effects can upstage him.

When their ocean liner capsizes, a group of passengers struggle to survive and escape.