Berthold Mittermayr is a notable figure in the realm of film directing, especially recognized for his contributions to German cinema in the 1990s. His film "Reise in die Dunkelheit" (1997) is particularly revered among collectors, not just for its gripping narrative but also for its stunning cinematography and bold themes that challenge societal norms. This film has become a sought-after item in both VHS and DVD formats, with collectors eager to own a piece of its compelling storytelling. Another highlight of Mittermayr's career is "Saubere Aktien" (1994), a sharp critique of corporate greed that continues to resonate with audiences today. This film's limited home video releases make it a prized possession for collectors who appreciate its blend of dark humor and social commentary. Mittermayr's work not only showcases his directorial prowess but also serves as a significant touchstone for those interested in the evolution of film and its cultural impact during the 1990s.