Quién sabe?
- Godina: 1967
- Zemlja: Italy
- Žanr: Western
- Studio: M.C.M.
- Ključna riječ: mexican revolution, spaghetti western
- Direktor: Damiano Damiani
- Uloge: Gian Maria Volonté, Klaus Kinski, Martine Beswick, Lou Castel, Aldo Sambrell, José Manuel Martín