 FACT: Near the end of the movie, on board the ship, the Chief is  pointing a Thompson sub machine gun at the Japanese officer with his  finger on the trigger. He threatens to kill the officer if he tries  anything. The bolt is forward on the Thompson, which is safe mode as  the Thompson has an inertia firing pin located in the face of the  bolt. this requires the bolt to be drawn back and then released by  the trigger. In semi