Arthur's next film was "The Ex-Mrs. Bradford" (1936), on loan to RKO Pictures, in which she starred opposite William Powell on his insistence, and hoped to take a long vacation afterwards. Cohn, however, rushed her into two more productions, "Adventure in Manhattan" (1936) and "More Than a Secretary" (1936). Neither film attracted much attention. Next, again without pause, she was re-teamed with Cooper, playing Calamity Jane in Cecil B. DeMille's "The Plainsman" (1936) on another loan, this time for Paramount Pictures. Arthur, who was De Mille's second choice after Mae West, described Calamity Jane as her favorite role thus far. Afterwards, she appeared as a working girl, her typical role, in Mitchell Leisen's screwball comedy, "Easy Living" (1937), with Ray Milland. She followed this with another screwball comedy, Capra's "You Can't Take It with You", which teamed her with James Stewart. The film won an Academy Award for Best Picture with Arthur getting top billing.