| Original title | Es geschah am 20. Juli | 
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| Danish title | Attentatet | 
| Leikstjórn | G.W. Pabst | 
| Screenplay | W. P. Zibao, Gustav Machatý | 
| Based on | Bog af Hans W. Hagen og Jochen WIlke. | 
| Director of Photography | Kurt Hasse | 
| Editor | Herbert Taschner | 
| Composer | Johannes Weissenbach | 
| Production designer | Ernst Albrecht, Paul Markwitz, Gottfried Will | 
| Appearance | Bernhard Wicki, Karl Ludwig Diehl, Carl Wery | 
| Land | Tyskland | 
| Domestic distribution | Panther Film | 
| Technical info | 35 mm, 1,37:1 Academy, Tone | 
| Danish theatrical release | 18.07.1955 | 
| Cinemas | Atlantic, Roxy | 
| Danish rating | Forbudt for børn u. 16 år (1935-1969) | 
      Companies | 
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| Production company | Arca-Ariston | 
| Domestic distribution | Panther Film | 
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      Instruktion | 
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| Instruktion | G.W. Pabst | 
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      Manus | 
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| Manus | W. P. Zibao | 
| Manus | Gustav Machatý | 
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      Produktion | 
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| Produktion | Jochen Genzow | 
| Produktion | Franz Seitz | 
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      Foto | 
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| Foto | Kurt Hasse | 
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      Klip | 
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| Klip | Herbert Taschner | 
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      Musik | 
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| Musik | Johannes Weissenbach | 
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      Produktionsdesign | 
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| Produktionsdesign | Ernst Albrecht | 
| Produktionsdesign | Paul Markwitz | 
| Produktionsdesign | Gottfried Will | 
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      Medvirkende | 
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| Medvirkende | Bernhard Wicki | 
| Medvirkende | Karl Ludwig Diehl | 
| Medvirkende | Carl Wery | 
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