 CHAR: Even though it is made clear that the military characters are  US Air Force, when the Sergeant (Michael Balfour, a British actor,  as were most of the others in the film) reports to Major Jeff  Cummings (Marshall Thompson) early in the film, he incorrectly gives  the Major a "British" salute, with the palm facing outward. Thompson  returns the salute correctly, with the palm facing inward.