A film projector is a device that displays moving images from a film reel onto a screen. It works by shining a bright light through the film, which is made up of a series of still images. As the film moves, these images are projected in rapid succession, creating the illusion of motion. Film projectors have been used in cinemas and home theaters for many years. They come in various types, including 16mm and 35mm projectors, each designed for different film formats. Despite the rise of digital technology, film projectors remain popular among enthusiasts and in certain artistic settings.