Men in the Deep

Uomini sul fondo

Also known as S.O.S. Submarine, Einer für Alle, Prisioneiros do Mar, Ubåt har sjunkit!, Pod morsko gladino

Submarine disaster drama made under the auspices of Mussolini's department of defense. During maneuvers a submarine collides with a surface vessel and drops to the ocean floor. The crew have thirty hours' worth of air to get it back to the surface.