L'agguato dei sottomarini

An unscheduled rescue at sea was performed by the actors during production when a launch exploded off the Coronado Islands in the Pacific Ocean. Nine men, members of the film expedition, were in the launch when it's gas tanks blew up, throwing all into the water. Second cameraman Bobby Burns and sound engineer Elmer Ellsworth were slightly burned. William Boyd, James Gleason, Robert Armstrong and the director Al Rogell plunged into the ocean to rescue their assistants.

The United States entry into World War One is portrayed as coming as a complete surprise to Ginger Rogers and her male friends. In fact, a declaration of war had been pending before Congress for days before the House and Senate voted resolutions. President Wilson signed the Declaration of War on April 6, 1917.

Edited into Oceano (1933)