Jambe, i picked up an interesting DVD at a car boot sale today. It's caled "the unauthorised star wars story". Its an hour long documentary and features interviews with the cast as well as george and some others involved in the saga including interviews with garrick hagon ( they make a cock up and call him biggs starglider though). It doesn't have any behind the scenes footage or any star wars footage but has a few interesting bits like the UK '77 star wars lines from news reports and footage of some of the tunisian locations. It seems to concantrate more on ANH than the other movies but most of the interviews i have never seen before.
I went into HMV and they said they had never heard of it Although i looked later on the net and found some info about it from amazon.com). Would this be of any interest to you or do you already have a copy of it? It does seem that its still available to buy but not from many places so you may be able to pick yourself up a copy for about £4 ( i only paid 25p today though.lol)