 Three-dimensional movies use two images channeled, respectively, to the right and left eyes to simulate depth by using 3-D glasses with red and blue lenses (anaglyph), polarized (linear and circular), and other techniques.3-D glasses deliver the proper image to the proper eye and make the image appear to "pop-out" at the viewer and even follow the viewer when he/she moves so viewers relatively see the same image.The earliest 3D movies were presented in the 1920s.