1. The villain hurriedly came to the world to fight with Stark and then went back without seeing the full reason or the villain's plan
2. At the beginning of the film, the government's distrust of Stark was shown, and his steel armor was regarded as a security threat. Later, when the villain was defeated by Iron Man, the contradiction line of the government disappeared.
3. There is a life-saving element hidden in the model that Stark's father gave him, but why did his father predict that his son needed this element?
4. Military friends don't know why they have to stand on Stark's side all the time, his work doesn't seem to be as important as this friendship
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