This study demonstrates how cinema can preserve and promote intangible cultural heritage through the film Ndzobi by Congolese director Mike Yombi (2021). In a context marked by the decline of initiatory practices threatened by modernity and urbanization, the film emerges as a strategic instrument for documenting and transmitting knowledge that is gradually disappearing. Ndzobi unveils the world of the eponymous initiatory society, integrating authentic ritual elements such as rites of passage, relations to the sacred, and community structures. Through the trajectory of Akouango, the work explores the tensions between collective traditions and individual aspirations. The analysis highlights the documentary, pedagogical, and symbolic functions of the film, reinforced by its visibility at FESPACO. By revealing the fragility of the rites and their risk of erasure, Ndzobi illustrates the capacity of African cinema to serve as a cultural mediator and a tool for safeguarding traditions.