“Full Metal Jacket,” directed by Stanley Kubrick, is a powerful and unflinching look at the Vietnam War, split into two parts. The first part takes place in a Marine Corps boot camp, with R. Lee Ermey’s unforgettable portrayal of the relentless Gunnery Sergeant Hartman and Vincent D’Onofrio’s transformation of Private Pyle from a struggling recruit to a shattered individual. The second part moves to the war-ravaged streets of Vietnam, following Matthew Modine’s character, Joker, as he faces the harsh realities of combat. Kubrick’s precise direction, sharp dialogue, and the film’s raw depiction of the dehumanizing effects of war make “Full Metal Jacket” a gripping and thought-provoking masterpiece.