When the Swiss Red Cross representative is escorted into the office, the guard places his rifle "order arms" on his left side, rifle butt on floor. The Red Cross man then passes the guard by. The guards rifle is now on his right side "order arms". There couldn't have been enough time to relocate the rifle.
The son of the Chinese Governor bows to the American aviators to return the honor they gave him. But the Chinese don't bow in this fashion. It is the Japanese who bow to show respect. So a Chinese man would never use this to show respect. Since it would align himself with Japanese custom.
There should be a solid red circle inside the white star on the insignia on the fuselage of the B-25 "Mrs. Murphy". The insignia shown was not adopted until June, 1942, two months after the Doolittle Raid.
The captain of an Army-Air Force bomber would not use the
phrase "abandon ship". This is a term a Naval Aviator or the
captain of a ship might use.