The film actually breaks with some of the Dogme 95 rules, e.g. the blood used in the car accident scene is 'theatre' blood, there were fantasy sequences shot in Super-8 and also a ThermaCAM has been used.
The ThermaCAM used in the opening and closing scenes, was originally intended for use throughout the movie. But in final editing Susanne Bier cut all the ThermaCAM-shots, because she felt they conflicted with the movies realistic tone.