A film projector is a device that displays moving images or films onto a screen or other projection surface. It uses a light source to illuminate individual frames of the film, which are then rapidly projected in succession, creating the illusion of motion. Film projectors have been widely used in cinemas and theaters to showcase movies, providing an immersive visual experience for audiences. They have played a significant role in the history of cinema and continue to be appreciated for their nostalgic charm and unique cinematic qualities.