Kodachrome—the beloved color film processor introduced by Kodak 75 years ago and serenaded by the likes of Paul Simon—has its final run in Kansas Thursday, where the last machine in operation is set to be sold for scrap. The film processor, favored for its colorful, warm prints, was more than a machine for some. "It's a pop culture icon," said a museum curator at the George Eastman House. Among the last visitors to use the remaining machine was a railroad worker from Arkansas who paid $15,798 to have 1,580 rolls developed. At its peak, there were 25 labs that processed Kodachrome. On Friday, there will be none.