Howard Hawks directed this 1952 screwball comedy, which gives Cary Grant, usually a matinee idol, a chance to act supremely silly – which he did to such stellar effect a decade before in Arsenic and Old Lace. Here, he plays a stodgy scientist whose personality is altered significantly when he invents a virtual Fountain of Youth formula. Co-stars, who also get to be quite playful, include Ginger Rogers, Charles Coburn and, quite memorably, Marilyn Monroe.