Montgomery's image toughened even more after WWII, during which he had distinguished himself in naval action in Europe. Montgomery made his directorial debut when an ailing John Ford was unable to complete "They Were Expendable" (1945), and he attracted considerable attention with his screen adaptation of Raymond Chandler's "Lady in the Lake" (1946). The film was related entirely from a "subjective" camera perspective, and is considered one of the more interesting failed experiments in cinematic narrative. Montgomery kept making films until the early 1950s, and while never entirely eschewing the light entertainments with which he was long associated (e.g., "June Bride," 1948, opposite Bette Davis), he did make the occasional worthy offbeat item (e.g., the noir "Ride the Pink Horse," 1947, which he also directed).
Montgomery subsequently trained his sights on TV, hosting the well-received "Robert Montgomery Presents" anthology series for eight years. He also ventured onto the stage, winning a Tony for directing "The Desperate Hours" in 1955. At times Montgomery also became active in politics: he was, unfortunately, a friendly witness at the infamous HUAC hearings which led to the Hollywood blacklist; later, Montgomery served as a communications consultant to President Eisenhower following the 1952 campaign.