Trivia: In the courtroom scene, all the people that have turned to color have to sit on the upper level. This is reminiscent of "To Kill a Mockingbird" (1963) where, in a similarly-built southern courthouse in the 1930's, all the "colored people" (African Americans) were relegated to the upper level.
Question: I'm sure I'm missing something, but the ending didn't quite gel with me. I didn't get the significance of George Parker becoming Bill Johnson off-screen. Was it that given the fictional nature of the world/show, they were both different sides of the same person, or what?