The Testing Block (1920)
Direttore:
Lambert Hillyer
Scrittori:
Lambert Hillyer, William S. Hart.
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William S. Hart as 'Sierra' Bill |
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Eva Novak as Nelly Gray |
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J. Gordon Russell as Ringo |
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Florence Carpenter as Rosita |
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Richard Headrick as Sonny |
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Ira McFadden as Slim |
| Writing | William S. Hart | Story |
| Editing | LeRoy Stone | Editor |
| Writing | Lambert Hillyer | Screenplay |
| Art | J.C. Hoffner | Art Direction |
| Directing | Lambert Hillyer | Director |
| Writing | William S. Hart | Screenplay |
| Writing | Lambert Hillyer | Scenario Writer |
| Camera | Joseph H. August | Director of Photography |
