Der Hauptmann von Köpenick (1956) is a classic German satirical comedy-drama starring Heinz Rühmann as Wilhelm Voigt, a poor shoemaker trapped in Prussian bureaucracy who, unable to get a passport for work, buys a second-hand captain's uniform and impersonates a Prussian officer to commandeer the town hall of Köpenick, highlighting absurd red tape and the blind reverence for military uniform in Imperial Germany. It's a poignant yet funny look at a man's struggle for identity and a critique of rigid authority.