Correction - intended to state that American military aircraft at the time carried the national insignia on the upper left wing and the lower right wing.
In the final scene, stock footage of a B-17 is shown. However, the serial number of the tail is reversed, indicating that the footage has been flipped from left to right.
After the fight in the NCO Club, Col. Gallagher addresses Komansky as "Private Komansky." Since Komansky is a regular member in his flight crew as the flight engineer, he should know that the correct rank is Sergeant. .