Citizen Kane to Bicycle Thieves. The decade Hollywood's wartime censorship ended, and European cinema began its post-war renewal.
The 1940s is the most-historically-loaded decade in cinema's first century. The first half is dominated by World War II — the Hollywood studios producing wartime propaganda alongside their commercial output, the European film industries either destroyed (much of France, Italy, Germany) or relocated (the Polish, German, and Czech filmmakers who fled to Hollywood). The second half is dominated by the war's aftermath — Italian neorealism, the French Resistance films, the German rubble films, and Hollywood's transition into noir.
Our picks across the decade.
The 1940s established almost every major non-musical American genre in its modern form. The film noir (Double Indemnity, The Maltese Falcon, Out of the Past). The post-war social-problem drama (The Best Years of Our Lives, Crossfire). The psychological thriller (Notorious, Shadow of a Doubt). The deep-focus realist drama (Citizen Kane).
It was also the decade that produced Italian neorealism, the single most-influential European film movement of the 20th century. Bicycle Thieves, Rome Open City, Paisà, La Terra Trema — these films, made for almost nothing, on the streets of post-war Italian cities, with non-professional actors, became the foundational template for almost every subsequent realist film tradition globally. The 1950s French New Wave, the 1960s Czech New Wave, the 1970s American New Hollywood, the 2000s Romanian New Wave — all are downstream of Italian neorealism.