Continuity mistake: In one of the early surgery scenes you see Trapper operating, although he arrives only later as the new chest cutter. (00:13:20)
Continuity mistake: Towards the beginning of the film, Hawkeye steals a jeep and drives off, splattering mud everywhere. When the local commander shouts to the MPs to "get that guy", the next shot shows them driving off onto totally dry ground; in fact, when their jeep abruptly stops, there is dust everywhere.
Continuity mistake: When the lady reporter is filming Hawkeye from her truck, she's approaching his position. After passing by him, she turns in the truck to keep him in range, filming backwards. But the movie camera angle filming Hawkeye is always approaching him, and at a slower speed than the reporter's truck was moving.
Answer: An officer is a person who has had special training (in college ROTC, or in OTS, called 90 days wonders) for command, tactics, military law and the like, after which they are Commissioned. They are basically management. An enlisted person is someone who has gone through basic military training, but does not have command responsibilities or authority. Basically labor. This gets a little confusing when enlisted personnel can rise in rank to become a Non-Commissioned officer, often called the backbone of the Service. But the highest ranked enlisted person does not out-rank, and has to salute, the lowest ranked officer.
Richard Welty