Matjaž Klopčič was a pivotal figure in Slovenian cinema, known for his distinctive directorial style and impactful storytelling. Active from 1959 to 2005, he directed 28 films, but it is his 1970 work, *Oxygen*, that has become a sought-after piece for collectors. This film not only showcases Klopčič's innovative approach to narrative but also reflects the socio-political landscape of its time, making it a significant artifact for both film historians and collectors alike. Klopčič's *Heritage* (Dediščina), screened in the Un Certain Regard section at the 1985 Cannes Film Festival, further solidified his reputation, drawing attention for its poignant exploration of cultural identity. Collectors often seek out his works, particularly those featuring the charismatic Polde Bibič, whose performances are integral to Klopčič's storytelling. With a legacy that intertwines art and history, Klopčič's films remain essential for anyone looking to understand the evolution of Slovenian cinema and the broader context of European film.