Before film noir had a chokehold on 1940s American cinema, there was Marcel Carné’s romantic tragedy, Port of Shadows, and the filmmaking ideology behind it. Debuting in France in 1938 as Le Quai des Brumes, the black-and-white film remains faithful to its poetic realist roots, leaning on an oppressive atmosphere to whisper the fate awaiting its characters within a painfully realistic world. The film carried a gritty mood and a message of existential pessimism and romantic fatalism. When the Vichy authorities later sought a scapegoat for the perceived softening of the French spirit before — and during — the nation’s...