The first, and some say the best, sound version of the famous split personality horror tale by Robert Louis Stevenson. The story follows the experiments of the eponymous doctor who seeks to prove that 'man is not truly one, but truly two' by separating his good self from his evil self. Concocting and then imbibing a potion that divides these two selves, Jekyll unleashes his monstrous alter ego, Mr Hyde. Made just before the introduction of the Hays Code, which brought stricter censorship to the film world, director Rouben Mamoulian's 1931 masterpiece doesn't shy away from the sexual undertones inherent in Stevenson's novella. Although Karl Struss's startling cinematography was overlooked at the 1932 Oscars, Fredric March's acclaimed performance in the double title role won him the Best Actor Award.