The film industry have changed since the early 1800 as back then they used many shots from cameras and clipped them together creating a film. 20th century is very more advanced then back then with editing software and  more advanced techniques of filming with cameras that can record and can be programmed to do slow motion or enhance graphics. also back in the early days of filming they had to use many cameras and many hours whilst in the modern era we use only two to three cameras to record scenes and movies. also the way we have advanced our technique of recording have evolved a lot with all the different types of shot angles and all the type of editing.