| Original title | Edge of Eternity |
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| Danish title | Afgrundens hemmelighed |
| Leikstjórn | Donald Siegel |
| Screenplay | Knut Swenson, Richard Collins |
| Based on | Efter historie af Ben Markson & Knut Swenson. |
| Director of Photography | Burnett Guffey |
| Editor | Jerome Thoms |
| Composer | Daniele Amfitheatrof |
| Appearance | Cornel Wilde, Victoria Shaw, Mickey Shaughnessy |
| Land | USA |
| Domestic distribution | Columbia |
| Technical info | 35 mm, Cinemascope, Eastmancolor, RCA Recording System |
| Danish theatrical release | 28.09.1961 |
| Cinemas | Nørreport Bio |
| Kommentar | Censur: 70469 gul (31/05/61 - 2185 meter ikke klippet). |
| Danish rating | Forbudt for børn u. 16 år (1935-1969) |
Companies |
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| Production company | Thunderbird production |
| Domestic distribution | Columbia |
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Instruktion |
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| Instruktion | Donald Siegel |
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Manus |
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| Manus | Knut Swenson |
| Manus | Richard Collins |
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Produktion |
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| Produktion | Kendrick Sweet |
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Foto |
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| Foto | Burnett Guffey |
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Klip |
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| Klip | Jerome Thoms |
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Musik |
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| Musik | Daniele Amfitheatrof |
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Medvirkende |
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| Medvirkende | Cornel Wilde |
| Medvirkende | Victoria Shaw |
| Medvirkende | Mickey Shaughnessy |
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