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Mister X
- Taon: 1967
- Bansa: Italy, Spain
- Genre: Action, Crime, Drama
- Studio: Copercines, Cooperativa Cinematográfica, Terra Film
- Keyword: superhero
- Direktor: Piero Vivarelli
- Cast: Pier Paolo Capponi, Gaia Germani, Armando Calvo, Anna Zinnemann, Umberto Raho, Renato Baldini