| Regel nr. 1 | |
| Director: | Oliver Ussing |
| Producer: | Søren Juul Petersen |
| Starring: | Susanne Juhász Mira Wanting Thomas Levin Nicolas Bro |
| Music: | Various |
| Cinematography: | Morten Søborg |
| Editing: | Nanna Frank Møller |
| Distributor: | Sandrew Metronome (Denmark) |
| Country: | Denmark |
| Runtime: | 87 minutes |
| Language: | Danish |
Regel nr. 1 (aka: Rule No. 1) is a 2003 Danish feature film directed by Oliver Ussing. It has a running time of 87 minutes.
This romantic comedy was produced by Zeitgeist in association with Zentropa.
It stars Susanne Juhász as a young single woman, Caroline, who is continually receiving advice from her sister, Sarah (Mira Wanting), with disastrous results. She eventually realises she has to find her own way through life.
It was nominated for three Robert awards (the Danish Oscar):