The Salzburg Connection is a 1972 American thriller film directed by Lee H. Katzin, starring Barry Newman and Anna Karina . It is based on the 1968 novel of the same title by Helen MacInnes. It was filmed in DeLuxe Color and Panavision. The sets were designed by the art director Hertha Hareiter. Extensive location shooting took place around Salzburg and at Lake Toplitz. The novel involves Nazi secret files found in a lake in similar circumstances to Lake Toplitz (Finstersee). Lake Toplitz is mentioned throughout the book also. Finstersee is the scene of action and is also shown on slides in the movie.