A Friend of Mine (Ein Freund von mir) is a 2006 German comedy-drama film written and directed by Sebastian Schipper who is a performer as well as a director and screenwriter. The casting was held in Hamburg and filmed in Berlin, Düsseldorf, Hamburg, and Barcelona. The film tells the story of Karl (played by Daniel Brühl), an insurance executive, and his friendship with the free-spirited Hans (Jurgen Vogel) whom he meets after being assigned to spy on a questionable car rental service by his boss. The film was released in theatres in Germany on October 7, 2006 and had a budget of around €2,700,000.