- Country: Denmark
- Genres: Comedy
- Release: 2003-10-31
- Director: Oliver Ussing
- Writers: Morten Dragsted , Oliver Ussing
- Language: Danish
- Stars: Susanne Juhász , Mira Wanting , Thomas Levin , Anders Valentinus Dam , Nicolas Bro , Claes Bang , Karen-Lise Mynster , Ali Kazim , Kamilla Gregersen , Peter Aalbæk Jensen
- Runtime: 87 min
- Awards: 3 nominations
- AKA: Rule No. 1 , Regra Nº 1 (Brazil) , Regel nr. 1 (Denmark) , Sten, saks, papir (Denmark) , Zasada nr 1 (Poland) , Regel nr. 1
- Plot: When Caroline finds her boyfriend having sex with another woman she is invited to stay at her sister Sarahs place. Now that she is suddenly back on the dating market she takes advice on men and fashion from her somewhat shallow sister. This leads to one dating disaster after the other. The one guy she meets on her own appears to be spoken for.
- IMDB:tt0354934
Rule No. 1 Cast · · · ALL
Oliver Ussing
Director
Susanne Juhász
Caroline Åkerwald
Mira Wanting
Sarah Åkerwald
Anders Valentinus Dam
Michael
Nicolas Bro
Palle
Claes Bang
John T
Karen-Lise Mynster
Helle Åkerwald
Ali Kazim
Patrick
Peter Aalbæk Jensen
Udlejer
Sara Bro
Linda de Vries
Paw Henriksen
Frederik
Kim Sønderholm
Sgt. Dalsgaard
Lærke Winther
Johanne
Carsten Bang
Politimand
Mick Øgendahl
Festgæst
Camilla Bendix
Læge
Carina Due
Patrick's Flirt
Paw Terndrup
Kollegiefyr