| Original title | Der var engang en krig | 
|---|---|
| Danish title | Der var engang en krig | 
| International titles | Once there was a war | 
| Leikstjórn | Palle Kjærulff-Schmidt | 
| Screenplay | Klaus Rifbjerg | 
| Director of Photography | Claus Loof | 
| Editor | Ole Steen | 
| Sound | Niels Ishøy, Hans W. Sørensen | 
| Production designer | Henning Bahs | 
| Appearance | Ole Busck, Kjeld Jacobsen, Astrid Villaume, Yvonne Ingdal | 
| Land | Danmark | 
| Domestic distribution | Nordisk Films Kompagni | 
| Technical info | 35 mm, Widescreen, Sort-hvid, Tone | 
| Danish theatrical release | 16.11.1966 | 
| Cinemas | Grand | 
| TV release | 26.03.1978, DR | 
      Companies | 
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| Production company | Nordisk Films Kompagni | 
| Domestic distribution | Nordisk Films Kompagni | 
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      Instruktion | 
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| Instruktion | Palle Kjærulff-Schmidt | 
| Instruktørassistent | Tom Hedegaard | 
| Scripter | Gytte Petersen | 
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      Manus | 
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| Manus | Klaus Rifbjerg | 
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      Produktion | 
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| Produktionsleder | Bo Christensen | 
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      Foto | 
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| Foto | Claus Loof | 
| Fotografassistent | Arne Abrahamsen | 
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      Stills | 
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| Stills | Per Grubbe | 
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      Klip | 
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| Klip | Ole Steen | 
| Klippeassistent | Birger Lind | 
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      Produktionsdesign | 
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| Produktionsdesign | Henning Bahs | 
| Regi | Helge Hansen | 
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      Kostumer | 
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| Kostumer | Lotte Dandanell | 
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      Makeup | 
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| Makeup | Karen Balsner | 
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      Lyd | 
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| Lyd | Niels Ishøy | 
| Lyd | Hans W. Sørensen | 
| Toneassistent | Peter Klitgaard | 
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      Andre credits | 
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| Assistent | Helge Daurup | 
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      Medvirkende | 
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| Tim | Ole Busck | 
| Tims far | Kjeld Jacobsen | 
| Tims mor | Astrid Villaume | 
| Lis | Yvonne Ingdal | 
| Kate | Katja Miehe-Renard | 
| Jane | Birgit Bendix Madsen | 
| Tims bedstefar | Christian Gottschalch | 
| Frank | Gregers Ussing | 
| Markus | Jan Heinig Hansen | 
| Markus' mor | Birgit Brüel | 
| Vennen | Jørgen Beck | 
| Vennens kone | Elsa Kourani | 
| Tysk flygtning i butik | Aase Due | 
| Rektor | Henry Skjær | 
| Tysk soldat | Palle Kirk | 
| Gymnastiklæreren | Holger Perfort | 
| Skoleelev | Tommy Kenter | 
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| Music | Year | Composer | 
|---|---|---|
| How-How | 1965 | Leo Mathisen | 
| Jeg elsker de grønne Lunde | 1965 | Albert Møller | 
| Type | Source | Forfatter | tíma | 
|---|---|---|---|
| Anmeldelse | |||
| Artikel | |||
| Program - stumfilm & mikro | |||
| Interview | |||
| Program i farve | |||
| Anmeldelse | |||
| Artikel | |||
| Interview | |||
| Program - stumfilm & mikro | |||
| Senere indgået materiale | |||
| Senere indgået materiale | 
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