You can find the video here. It looks slightly like a 20 minute credit sequence but that doesn't matter. David Berry was among the first special effects guys working at Industrial Light and Magic (just like some of the other people in this video he also went on to work on Indiana Jones). He put together some footage that was recorded back in the 70s featuring his (quite famous) colleagues working on Star Wars.
I really really love this video.
(via io9)
I really really love this video.
(via io9)