The Secret Witness
- Viti: 1931
- Vendi: United States of America
- Zhanri: Drama, Comedy, Mystery
- Studio: Famous Attractions
- Fjalen: adultery, based on novel or book, murder
- Drejtori: Thornton Freeland
- Cast: Una Merkel, Purnell Pratt, Zasu Pitts, Clarence Muse, Paul Hurst, Ralf Harolde