Some of you seem to be missing the point. Unless you dig dead video formats, there is no easy legal way to see the original 1971 feature film. It's been buried. Even TCM only shows the 2004 cut.

As for the doc, as Lucas expounds on how he used real life locations to realize his underground dystopia in 1970, there is a cut to a CGI cityscape. By accident or design, it's implied this is what he achieved with 1970's ingenuity. Unlike the Star Wars SE's, the changes are never touted or talked about. Not even once. There are no revised credits to tell you of the restoration, or who did the new scenes.

There are already people who think Jabba was in Star Wars in 1977. This is how film history gets rewritten and the facts get forgotten.