Within the first three minutes of “Disorder,” our protagonist is told he must abandon his job as a soldier. The nameless war damaged his hearing, rendering him unfit for combat. Devastated and distressed, Vincent (Matthias Schoenaerts) resigns himself to being a bodyguard at bourgeois bacchanals. He convinces himself (and his peers) that he’s merely “in between missions” before being shipped off again. It’s the lie he needs to tell himself in order to trudge onward.