A film is a film or motion picture tape. The term comes from the English word film, which is also accepted by the Royal Spanish Academy (RAE) in your dictionary.
To understand what a film is, you first have to focus on the concept of motion picture film. This is how the celluloid roll that shows multiple photographs, which are projected in a screen or on another type of flat surface thanks to a cinematograph.
The idea of cinematographMeanwhile, it alludes to the apparatus that makes it possible to record and project films. The succession of the images on the screen at a certain speed generates the sensation of movement: in this way, viewers do not see isolated photos, but rather a continuity.
It is important to mention that it is also called a film cinematographic work. Films as a whole are often referred to simply as movies.
Therefore, it can be affirmed that, in the most limited or technical sense, a film is a celluloid tape with still images that, when projected consecutively and with a very rapid succession, produce the optical illusion of movement. Another way of understanding the film is as a construction site that tell a story, be it fiction or documentary.
Those who create a film or cinematographic work want viewers to see it (that is, to attend the projection of the images). Many people intervene in the creation of a film, participating in multiple processes: there is a director, scriptwriters, actors, cameramen, sound engineers, etc.