A Terrifying, Gripping Action Tale on the Duality and Evil of Mankind

Rating: 9/10 (3 July 2019)

Full Metal Jacket grabs you by the throat and drags you along all the different and equally vile muds of the Vietnam war. No, actually; it goes further than that - it drags you on the muds of war and vileness as a whole.
Through grounded and subtle dialogue; believable and passionate acting; an intense and terrifying score; brilliantly detailed and realistic set and costume design; beautiful and jarring shot composition and cinematography; real and powerful themes brought about with character and motif; and a storytelling technique with total literary cohesion and keen detail; Kubrick and his cast and crew build a world within our own that is direct, poignant and honestly brutal.
This film shows precisely why violence can only cause violence. It shows how the peaceful can become the terrible and how the beautiful can become the ugly. Full Metal Jacket explains that war is not hell - because hell is for sinners only.
It is quite probably possible to explain for hours how each character and action in the movie portrays Joker's line on duality. Perhaps it is possible to take such time to explain the theme's (or should it be "themes'"?) connection even to the set design, musical choices, and costumes. But this is a review, not a thesis. So we shall leave that for another time.
Watch this movie, but be fully prepared for its intense and disturbing violence.
tl;dr: it's a Stanley Kubrick movie.