This screensaver mimics the falling green code seen in the popular 1999 film The Matrix, directed by Andy and Lana Wachowski, and starring Keanu Reeves. Matrix digital rain, as it is called, represents the (encoded) activity of the virtual reality environment that is the Matrix, and is displayed on computer screens throughout the movie. You can customize the rain by adjusting the speed, cypher density and font. Additionally, you can insert coded messages into the screensaver, which will be gradually decoded on the screen.