The water curtain laser movie system projects laser beams emitted by a laser onto a water film created by water curtain nozzles. The laser beams are programmed and controlled by a laser control system, allowing for a variety of patterns and colors to be displayed on the crystal-clear water film, creating a dazzling and extraordinary effect. Water curtain movies emerged in the 1980s and are only found in a few major cities internationally, such as in France and Japan. The water curtain movie uses a special projection machine, and the films used are specifically made for water curtain movies. Because the movie screen is a transparent water film, there is a unique optical effect during the film projection, where the screen's visual permeability gives the images a three-dimensional feel, allowing the film's content to cleverly blend with the water surface, creating an immersive and fantastical experience. The water curtain movie is created by high-pressure water pumps and specially designed water curtain generators that spray water upwards at high speed, forming a fan-shaped screen after atomization. A dedicated projector then projects the specially made video tape onto this "screen," resulting in a water curtain movie. When the audience watches the film, the fan-shaped water curtain merges with the natural night sky, and as characters enter and exit the scene, it appears as if they are soaring into the sky or descending from above, creating an ethereal and dreamlike sensation that captivates viewers. The laser water curtain movie mainly consists of a water curtain generator, a projector, and lasers. The water curtain can reach heights of 8 to over 20 meters and widths of 15 to 50 meters. Various VCD discs or films specifically designed for water curtains can be played on the water curtain, offering unique and novel audiovisual effects, making it an excellent advertising tool. Water curtain movies can be installed in various squares and expansive water surfaces. Laser water curtain movie advertisements are more attractive to customers than traditional advertisements; they are vibrant in color, clear in image, and visible from a distance, with beams that enhance the beauty of the urban night sky. The content can be changed according to customer requirements, announcing the latest news, and can also alternately showcase different merchants' advertisements. In terms of form, it can combine dynamic and static elements, vary in speed, feature loud sound effects, and present rich visuals, leaving a strong impression on the audience. It is an ideal advertising medium.