http://www.youtube.com/watch?v=G9ynzTw8XMU
AMC on Film Restoration 1993
This piece gives you a peak into what was about to happen to SW. Early digital film preservation/frame change. Details on how the digital audio was modified by taking a small audio clip from a fraction of a second before or after. Also about the visuals, where they take again a piece of the frame from one frame before or after to cover imperfections.
After watching this, finding myself more and more interested in seeing the original digital film capture. This report gives a good sense of how much work goes into this digital replacement. Can't call it clean up anymore in my eyes.