Undaunted: The Forgotten Giants of the Allegheny Observatory (2012)
დირექტორი: Dan Handley
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Cain Alexander as Young Samuel Langley |
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Kurt Bell as Self |
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Robert R. Bell as Josiah King |
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Len Caric as Harvey Childs |
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David Conrad as Narrator |
| Editing | Dan Handley | Editor |
| Production | William Peduto | Executive Producer |
| Writing | Dan Handley | Writer |
| Production | Dan Handley | Producer |
| Directing | Dan Handley | Director |
| Sound | Scott Michael Burns | Original Music Composer |
| Camera | Jeff Garton | Director of Photography |
| Camera | Mark Knobil | Director of Photography |
