Bachelor Apartment is a 1931 American pre-Code RKO comedy/romance film directed by and starring Lowell Sherman as a womanizing playboy who falls in love with Irene Dunne's honest working girl. The credits for the film, and all sources from that time show that the film was based on a story by New York playwright John Howard Lawson, the screenplay was adapted by J. Walter Ruben. However, Lawson would later claim that the final screenplay had not been altered from what he had originally written. The cast features Mae Murray (a former silent film star, who was attempting to make a come-back in talkies), Norman Kerry and Ivan Lebedeff.