Before anything, I should probably apologise for creating a post about the most over posted film in the world, ever.
Star Wars.
But this is a link to a book that I imagine everyone has read over and over but I've only just disovered.
http://secrethistoryofstarwars.com/book.html
It's a free download and a genuinely interesting read (no doubt full of information to be found elsewhere).
It's a free PFD and I'm enjoying it thoroughly.
It's sort of a history and kind of an expose but it doesn't seem to be attempting anything sensational - it's actually quite balanced.
The insights into Lucas are the most interesting, the least surprising of which is that he's not especially talented and was happy making shitty films (again, this information is presented in a straight forward manner with no hysterical fanboying).
I didn't bother to read the first half, about Lucas' influences or the making of A New Hope.
I read from the chapter called The Wreckage, about the difficult relationship between Lucas and Kirshner.