In the 1940s, RKO stood out among the industry's Big Five for its focus on B pictures. From a latter-day perspective, the most famous of the major studios' Golden Age B units is Val Lewton's horror unit at RKO. Lewton produced such moody, mysterious films as "Cat People" (1942), "I Walked with a Zombie" (1943), and "The Body Snatcher" (1945), directed by Jacques Tourneur, Robert Wise, and others who became renowned only later in their careers or entirely in retrospect. The movie now widely described as the first classic film noir—"Stranger on the Third Floor" (1940), a 64-minute B—was produced at RKO, which released many additional melodramatic thrillers in a similarly stylish vein.