Career
In 1981, Arlien-Søborg first received attention for her role as the conniving schoolgirl, Anne-Mette, in Nils Malmros"s coming-of-age drama Tree of Knowledge (Kundskabens træ). Filming for the role was performed over a two-year period, while Arlien-Søborg was 13 to 15 years old, to realistically show her character"s physical and emotional maturation. Two years later, Arlien-Søborg performed the lead in Malmros" 1983 drama Skønheden og udyret (Beauty and the Beast).
In 1986 Arlien-Søborg performed in the Danish television miniseries Kaj Munk and she once again performed for Malmros in his 1989 film Århus by Night.
After completing an education in literature history, she worked for Denmark"s DR Television studio where she wrote and directed the miniseries Derude medical snøren. Arlien-Søborg subsequently worked as an assistant director for Malmros on two films, 2002"s At kende sandheden (Facing the Truth) and Kærestesorger (in post-production in 2008).