In 2009, as digital cameras, still full of technical flaws, suddenly replaced film, I wondered: why are some innovations instantly embraced while others never take hold? Was cinema bound to celluloid, or destined to follow its era’s technologies? Industrial and financial interests were obvious, but they didn’t seem to fully explain this evolution. This film, built from archives and extracts, was part of my graduation essay on the causes of the digital transition. Through it, I tried to grasp what cinema really is, its essence, by tracing it back to its origins.