| Original title | 491 | 
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| Danish title | 491 | 
| Leikstjórn | Vilgot Sjöman | 
| Screenplay | Lars Görling, Vilgot Sjöman | 
| Based on | Efter sin egen roman (Lars Gjörling). | 
| Director of Photography | Gunnar Fischer | 
| Editor | Lennart Wallén | 
| Composer | Georg Riedel | 
| Appearance | Leif Nymark, Stig Törnblom, Lars Hansson | 
| Land | Sverige | 
| Domestic distribution | Nordisk Films Kompagni | 
| Technical info | 35 mm, Widescreen, Sort-hvid, Tone | 
| Danish theatrical release | 22.04.1965 | 
| Cinemas | Nygade | 
| Danish rating | Forbudt for børn u. 16 år (1935-1969) | 
      Companies | 
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| Production company | Svensk Filmindustri | 
| Domestic distribution | Nordisk Films Kompagni | 
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      Instruktion | 
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| Instruktion | Vilgot Sjöman | 
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      Manus | 
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| Manus | Lars Görling | 
| Manus | Vilgot Sjöman | 
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      Produktion | 
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| Produktion | Lars-Owe Carlberg | 
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      Foto | 
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| Foto | Gunnar Fischer | 
| Kameraassistent | Rolf Holmqvist | 
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      Klip | 
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| Klip | Lennart Wallén | 
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      Musik | 
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| Musik | Georg Riedel | 
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      Kostumer | 
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| Kostumer | Bertha Sånnell | 
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      Medvirkende | 
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| Medvirkende | Leif Nymark | 
| Medvirkende | Stig Törnblom | 
| Medvirkende | Lars Hansson | 
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