Revealing mistake: Near the end of the film, there is a football game played between the rival MASH units. Although the game is supposed to be taking place in a remote location of Korea in 1951, late model 1960's automobiles can be seen driving on a nearby highway as the game progresses. This gave away the fact that the football scenes were shot at a university in Southern California.
Revealing mistake: When the helicopter that takes the departing nurse that took care of Painless is in a close up, and as it turns away from the camera, you can see the reflection of the lights for the camera.
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