The film reflects Dewdneys conviction that the projector not the camera is the filmmakers true medium The form and content of the film are shown to derive directly from the mechanical operation of the projector specifically the maltese cross movements animation of the disk and the cross illustrates graphically pun intended the projectors essential parts and movements It also alludes to a dialectic of continuousdiscontinuous movements that pervades the apparatus from its central mechanical operation to the spectators perception of the films images His soundtrack demonstrates that what we hear is also built out of continuousdiscontinuous subsets