this is informative and interesting. click the words below, they're the link

a cool george lucas interview/story from wired magazine in 2005

"!"

The myth of Luke Skywalker hinges on courageous acts of liberation. In our conversation at the ranch, Lucas sums up the central theme of his films from THX 1138 to Revenge of the Sith: "How do you personally get to the point where you wake up out of your stupor and take charge of your life and do dangerous and scary things?"