This documentary was featured on the 2004 original trilogy DVD box-set release, and I finally got around to watching the whole thing from start to end on the weekend. Since the thing's two and a half hours long, you can't blame me...
It was a pretty cool doco; beginning with George Lucas becoming a film-maker, to his conception of Star Wars, and trying to sell it to studios. Fox eventually took it on, but its obvious for the first hour of the program that not a single person was at all convinced Star Wars would be good... that being the case, George Lucas got the rights to toys and shirts and other merchandise, as well as the right to make the sequels.
Anyway, it goes on for a while and ends around the time he started Phantom Menace. Pretty cool, anyway; I recommend all fans watch it if they get a chance.
Saw this on TV last year, damn good. Best SW documentary I've seen by far. Even had some things I didn't know... and I fancy myself quite the SW scholar