“The Factory Must Not Stop!” is a documentary film about a former giant of the Yugoslav chemical industry and the memories of its workers. A discovered archive — tens of thousands of slides and negatives — becomes an entry point into a world that no longer exists. Through images and testimonies, a representative of a new generation, Aleksandar Kostić, explores the boundary between lived experience and collective nostalgia, trying to understand why the factory continues to live on in people’s stories — as myth, trauma, or a lost ideal.