The story Udo Kier's character Udo tells Lars and Niels, is actually the real story of Udo Kier's birth.
The script von Trier and Vørsel have just finished writing at the beginning of the film is titled "The Policeman and the Whore" - an apparent reference to their previous collaboration, El elemento del crimen (1984), whose lead characters are a detective and a prostitute.
The second film in Lars on Trier's 'Europa' trilogy which illuminates the traumas of Europe in the future. The two other parts are El elemento del crimen (1984) and Europa (1991).