The old reliable Paul Frank/Ladislaus Fodor stage play The Church Mouse was streamlined for the movies in the form of Beauty and the Boss. The "beauty" is fetching Marian Marsh, a stenographer in a staid Viennese financial institution. The "boss" is Warren William, a wealthy baron with a habit of dallying with pretty girls, then letting them down gently. But Marsh, who has a Cinderella complex, isn't about to be cast aside. The diffident Charles Butterworth injects a few genuine laughs into the pat and predictable proceedings.