| Original title | Rooftops | 
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| Danish title | Årgang '89 | 
| Leikstjórn | Robert Wise | 
| Screenplay | Terence Brennan | 
| Based on | Fortælling af Allan Goldstein, Tony Mark. | 
| Producer | Howard W. Koch Jr. | 
| Director of Photography | Theo van de Sande | 
| Editor | William Reynolds | 
| Composer | Michael Kamen, David A. Stewart | 
| Production designer | Jeannine Claudia Oppewall | 
| Appearance | Jason Gedrick, Troy Beyer, Eddie Velez | 
| Land | USA | 
| Domestic distribution | Dansk Filmindustri | 
| Technical info | 35 mm, Deluxe, Tone | 
| Danish theatrical release | 03.07.1989 | 
| Cinemas | Palads, BioTrio, Kino (Roskilde) | 
      Companies | 
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| Production company | New Vision Pictures | 
| Domestic distribution | Dansk Filmindustri | 
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      Instruktion | 
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| Instruktion | Robert Wise | 
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      Manus | 
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| Manus | Terence Brennan | 
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      Produktion | 
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| Producer | Howard W. Koch Jr. | 
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      Foto | 
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| Foto | Theo van de Sande | 
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      Klip | 
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| Klip | William Reynolds | 
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      Musik | 
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| Musik | Michael Kamen | 
| Musik | David A. Stewart | 
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      Produktionsdesign | 
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| Produktionsdesign | Jeannine Claudia Oppewall | 
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      Medvirkende | 
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| Medvirkende | Jason Gedrick | 
| Medvirkende | Troy Beyer | 
| Medvirkende | Eddie Velez | 
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