Question: In the opening scene, why did Stauffenberg just sit in the jeep idly while watching the fighter's bullet path come towards him? Even if he saw that too soon, he could've at least tried to open the door and throw himself to the ground.
Question: Did Stauffenberg's adjutant really step in front of him to take the bullet for him as was depicted in this film? And why did he, if he knew all of them were going to be shot anyway?
Answer: Per Wikipedia, yes, he did, as a sort of final act of loyalty and friendship, as well as a gesture of defiance to his executioners.
Question: Why did Stauffenberg have to put in his prosthetic eye whenever he had to be in Hitler's presence?
Answer: In real life, Stauffenberg regularly switched from wearing his glass eye and an eye patch. He wore the glass eye when meeting with senior officers, not only Hitler. At other times, he used the eye patch. This was attributed to the glass eye probably being uncomfortable. Presumably, he did not want to appear handicapped or weak to his superiors. He may also have felt the eye patch was a distraction or looked less dignified.
Question: Why did all of the officers and high-ranking officials put out their cigarettes when Hitler's plane landed at the airfield?
Answer: Hitler was fanatically anti-tobacco: https://www.theatlantic.com/health/archive/2014/07/the-nazis-forgotten-anti-smoking-campaign/373766/.
Answer: They are supposed to stand at attention when he arrives and salute when he walks past them. It is considered bad form to salute the Führer (or any leader) with a cigarette in your mouth or hand.
Answer: You have to understand, this is a dramatic reenactment of the incident which caused Von Stauffenberg to get his injuries. It is not based on reality. They are trying to add drama to the scene by having him watch his demise approach, which is common in movies.
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