3. Captain America Instructs The Police (The Avengers)
Soon after the Chitauri invasion gets underway in the Avengers movie, Captain America encounters a high-ranking police officer who is discussing the possibility of calling the National Guard with one of his peers while his men fire their guns at the aliens in a futile effort. Cap instructs the police officer to get civilians out of nearby buildings and off the streets in to the subway. He also tells him to create a perimeter as far back as 39th street. The police officer, confused and unaware of who Cap is, responds by asking "why the hell should I take orders from you?" At that point, Cap is attacked by a group of Chitauri aliens who he takes out single-handedly. The police officer's response is to immediately carry out the exact instructions Cap gave him.