The semi-documentary approach was in vogue in the immediate post-World War 2 era. Partly due to the war itself, the economics and the fashion for Italian neo-realist approaches. Director Anthony Mann and cinematographer John Alton revelled in this pacy story about treasury agents going after a counterfeiting ring. What is lacking in star power and what irritates about the ‘official’ voiceover narration is made up for in action and tension. It’s also good to see Los Angeles in full flow in 1947. Alton’s work was truly extraordinary here and his book Painting With Light appeared two years later, explaining his aesthetic. He would move onto colour with An American In Paris. He and Mann made the beautiful The Black Book/Reign of Terror in 1949, a political allegory set around the French Revolution: that’s a film you simply have to see. They also collaborated on Raw Deal (again with Dennis O’Keeffe) in 1948 and Mann also worked uncredited that year with Alton on He Walked By Night, with some of the best cinematography you will ever see: truly these men achieved great visuals together. Mann would of course go on to direct some of the best westerns in the 1950s and he spent most of the 1960s working on epics like El Cid before dying aged just 60 in 1967.