Celluloid Underground is a feature-length autobiographical documentary by Iranian director, writer and curator Ehsan Khoshbakht about his initiation into the world of cinephilia. It is the story of his friendship with a maverick film collector who hid thousands of banned 35mm films and posters in basements in downtown Tehran to save them from the fanatical fundamentalists. The documentary celebrates the power of cinema to resist tyranny and the subtle heroism of the friend who changed his life.