Audience studies is a recent field of study related to the work of film archives drawing on both quantitative and qualitative data but does not form part of this collection other than by inference. The emphasis is on the projector and other tools for darkened rooms, like printers; in the showman days of fairground entertainment these were one and the same with the camera. It is these three tools of practice where attention is focussed, strung between the vastly different worlds of Hollywood and the amateur filmmaker.