Walter Matthau: Diamond in the Rough
- Metai: 1997
- Šalis: United States of America
- Žanras: Dokumentiniai
- Studija: Janson Media, Wombat Productions
- Raktažodis:
- Direktorius: Gene Feldman
- Vaidina: Walter Matthau, Ossie Davis, Edward Dmytryk, Julie Harris, Jack Lemmon, Charles Matthau