| Original title | Der 20. Juli |
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| Danish title | Den 20. juli |
| Other titles | The plot to assassinate Hitler, Attentatet på Hitler |
| Leikstjórn | Falk Harnack |
| Screenplay | Falk Harnack, Werner Jörg Lüddecke, Günther Weisenborn |
| Director of Photography | Karl Löb |
| Editor | Kurt Zeunert |
| Composer | Herbert Trantow |
| Production designer | Hans Jürgen Kiebach, Gabriel Pellon |
| Appearance | Wolfgang Preiss, Annemarie Düringer, Robert Freitag |
| Land | Tyskland |
| Danish theatrical release | 18.08.1955 |
| Cinemas | Carlton |
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| Production company | Central Cinema Company Film |
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Instruktion |
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| Instruktion | Falk Harnack |
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Manus |
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| Manus | Falk Harnack |
| Manus | Werner Jörg Lüddecke |
| Manus | Günther Weisenborn |
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Produktion |
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| Produktion | Artur Brauner |
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Foto |
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| Foto | Karl Löb |
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Klip |
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| Klip | Kurt Zeunert |
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Musik |
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| Musik | Herbert Trantow |
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Produktionsdesign |
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| Produktionsdesign | Hans Jürgen Kiebach |
| Produktionsdesign | Gabriel Pellon |
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Medvirkende |
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| von Stauffenberg | Wolfgang Preiss |
| Hildegard Klee | Annemarie Düringer |
| Lindner | Robert Freitag |
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