When Did “Movie” Replace “Motion Picture”?
In America the slang expression “movie” began to get circulation in newspaper comic strips in 1909, and within a year it was well on its way to nationwide usage.
Kinetoscope
The “Latham Loop” – A Loop of Film that Freed an Industry
The “Latham Loop” is the small, slack-forming loop that the film’s path takes just before it passes in back of a camera’s, or in front of a projector’s, shutter.