The documentary "European Postage Stamp" explores the idea of European unity, integration, and cooperation through the world of philately—an idea that originated in 1956 and continues to this day. Through the story of postage stamps, the film reveals that they are far more than a means of paying postal fees; they are carriers of culture, identity, art, and shared European values. At the heart of the film are philatelists Luka Stamać and Tomislav Dukarić, who discuss their shared passion for philately and the changes brought about by the modern world. Technological progress has transformed the way postage stamps are collected, yet it has not diminished their value or appeal among collectors.