MASH (1970)

Robert Altman barely holds this largely incoherent film together with a couple fool doctors. 

A Mobile Army Surgical Hospital is stationed in Korea in the 1950s. Sex, alcohol, and stunts keep the staff occupied when they are out of the operating room. 

In its day, MASH was an innovative film with ongoing dialogue in the background and plenty of ad lib from the actors. Today, it's difficult to stay awake with much of the lines being washed over by background noise and incoherent speech. The actors often mumble their lines on top of that. The movie is episodic and doesn't have much continuity to hold the story together.

In large part, besides producing some comedy, this film is a rebellion to the Vietnam war at the time and to the military establishment. 

IMDB