Cross My Heart Hear Betty's New Song-Hits! A compulsive liar admits to a killing she didn't commit so her husband, a lawyer, can clear her and build a reputation for himself. Details Casts Title Cross My Heart Release Date 1946-12-18 Runtime 01 Hours 25 Minutes Genres Comedy Music Mystery Production Companies Paramount Pictures Production Countries United States of America Betty Hutton Peggy Harper Sonny Tufts Oliver Clarke Rhys Williams Prosecutor Ruth Donnelly Eve Harper Al Bridge Detective Flynn Iris Adrian Miss Baggart Howard Freeman Wallace Brent Lewis L. Russell Judge Michael Chekhov Peter Mae Busch Juror Frank Faylen Fingerprint Expert Olga San Juan Dancer Gladden James Reporter (uncredited)