Politics: 'Star Wars' Raises Questions on U.S. Policy

The prequel trilogy is based on a back-story outline Lucas created in the mid-1970s for the original three "Star Wars" movies, so the themes percolated out of the Vietnam War and the Nixon-Watergate era, he said.

Lucas began researching how democracies can turn into dictatorships with full consent of the electorate.

In ancient Rome, "Why did the senate after killing Caesar turn around and give the government to his nephew?" Lucas said. "Why did France after they got rid of the king and that whole system turn around and give it to Napoleon? It's the same thing with Germany and Hitler.

"You sort of see these recurring themes where a democracy turns itself into a dictatorship, and it always seems to happen kind of in the same way, with the same kinds of issues, and threats from the outside, needing more control. A democratic body, a senate, not being able to function properly because everybody's squabbling, there's corruption."