What are the four changes in movies?

1. The first change, in 1872, Muybridge showed people the photo tape with the image of a galloping horse again and again. Once, someone unconsciously pulled the photo tape quickly, and a strange scene appeared in front of them: the still horses in each photo were stacked into a moving horse, and it actually "lived"!

2. Prado invented the "trickster" in 1832 based on this principle. The "Trick Board" can make the pictures drawn on the zigzag cardboard plate come alive due to movement, and can also decompose the visually produced moving pictures into various different images. The emergence of "trickster" marks that the invention of film has entered the stage of scientific experiment.

3. The early film history in the United States and Europe was marked by the dispute over camera patents. In 1888, Prince was awarded a double patent in the United States for a 16-lens device that combined a movie camera and a projector. Another of his inventions, a single-lens camera (the MkI), was denied a patent in the United States because a similar product already held a patent.

4. In 1893, T.A. Edison invented the movie scope and created the "Prison Car" studio, which is regarded as the beginning of American film history. In 1896, the introduction of the Vita projector began the mass screening of American films. At the end of the 19th century and the beginning of the 20th century, with the rapid development of urban industry and the rapid increase of middle- and lower-class residents in the United States, movies became a popular entertainment that catered to the needs of urban civilians. After the golden age of American movies ended, major companies began to disintegrate or switch productions from the mid-1980s, and the Hays Code was officially abolished. Then micro theaters, art theaters, and drive-in theaters appeared. Independent production and experimental films have developed.