| Original title | Du skal angre |
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| Danish title | Du skal angre |
| Leikstjórn | Ubekendt |
| Screenplay | Aage Holm |
| Appearance | Lauritz Hansen, Helga Hansen, Jon Iversen, Anna Müller |
| Land | Danmark |
| Domestic distribution | Biorama |
| Technical info | 725 meter, 35 mm, Stum |
Companies |
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| Production company | Filmfabrikken Skandinavien |
| Domestic distribution | Biorama |
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Instruktion |
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| Instruktion | Ubekendt |
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Manus |
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| Manus | Aage Holm |
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Medvirkende |
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| Vilhelm Schannong, komponist | Lauritz Hansen |
| Maria, komponistens kone | Helga Hansen |
| Poul, komponistens søn | Jon Iversen |
| Alice | Anna Müller |
| Reinhold, læge | Edmund Petersen |
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