keiko

Revealing mistake: In this scene we see John Wayne talking to the deck gunner who is manning his post. There are also some sailors who are scanning the horizon for enemy shipping. It is obvious the background scenery of a cloudy night is a stage prop. You can also see a dark line coming down, meaning it was put together in panels. The fact that the clouds don't move or change shape also suggests the use of a stage prop. (01:14:20)

keiko

Revealing mistake: In this scene we see the underwater shot of the US submarine and the hull of the Japanese ship. It is clear this scene was shot in a tank as the suns reflection appears on the tank wall to the left of the shot.

keiko

Continuity mistake: When the Japanese ship is about to be torpedoed, there are no numbers or letters on its side. In the next shot, when the ship explodes, a large white "265" is visible on the port side of the ship.

keiko