rinsed version of the famous gingham dress.  Once the door is opened and the camera advances through it, Garland  (wearing her bright blue dress) walks through the door and the  audience is none the wiser. This effect does not work on older  video/TV prints where the Kansas scenes appear in true black and  white, as the changeover to color is all too apparent. With the  Kansas scenes returned to their original sepia tints, however, they  closely match the magical opening door and the effect is powerful.