One, Two, Three is a 1961 comedy film directed by Billy Wilder and starring James Cagney, Horst Buchholz, and Pamela Tiffin. It is set in Cold War-era Berlin and follows the story of C.R. MacNamara, an ambitious executive at the Coca-Cola company who hopes to secure a promotion to head of European operations.
MacNamara is tasked with taking care of his boss's wild daughter, Scarlett, who has come to Berlin to visit. Scarlett reveals that she has secretly married Otto Piffl, a young East German Communist, which sends MacNamara into a panic as he worries that the marriage will harm his career prospects.
Despite his efforts to break up the marriage and keep his boss in the dark, events rapidly spiral out of control as MacNamara becomes embroiled in a series of misadventures involving Communist sympathizers, Russian agents, and even the Berlin Wall itself.
As the situation becomes increasingly chaotic, MacNamara must navigate a web of intrigue and double-crosses in order to salvage both his career and his relationship with Scarlett. Along the way, he learns valuable lessons about the importance of family, loyalty, and standing up for what you believe in.
One, Two, Three was well-received upon its release and is now considered a classic of the genre, thanks to its fast-paced humor and sharp satire of Cold War politics.