During the closing scene, when Ginger faints, she falls on her side. When Sgt. Jim O'Hearn goes to help her up, she is laying flat on her back.
The yacht is flying a Dutch flag, implying that it was a neutral. The Dutch were at war with Japan. A Dutch flagged vessel would never be allowed passage through Japanese controlled waters.
At the opening of the court martial, when the judge asks, "Is the prosecution ready to proceed?" the JAG lieutenant (Hayden Rorke) responds, "Aye, sir." US Marines and Naval personnel use "yes" to respond to a question in the affirmative, and "aye" to respond to an order. A lieutenant would know this.