Full Metal Jacket

During the United States' involvement in the Vietnam War, a group of recruits arrive at Parris Island. The drill instructor Gunnery Sergeant Hartman uses harsh methods to turn the recruits into combat-ready Marines. Among the recruits is the overweight and dim-witted Leonard Lawrence, whom Hartman nicknames "Gomer Pyle", and the wisecracking J.T. Davis, who receives the name "Joker" after interrupting Hartman's speech with an impression of John Wayne.