USS Christmas

Many shipboard scenes were filmed on the WWII aircraft carrier USS Yorktown (CV-10), a museum ship moored in Charleston, SC. Aircraft on display on the flight deck served as some of the aircraft seen in the movie. The Yorktown is not a "supercarrier," as the USS Polaris is depicted to be, so there are noticeable differences between the ship as seen on deck and the wide shots of the ship seen at sea, the most obvious being the island superstructure.

During dinner with the Captain not only is he not wearing the correct rank, (2 gold bands on uniform jacket is a Lt and Captain wears 4 gold bands) he is also missing the Commanding Officers insignia, a gold star on uniform.

References La vita è meravigliosa (1946)