Special Effects (1996) US 1 Sheet Poster
Documentary on special effects directed and edited by Ben Burtt, and the closest to a Star Wars poster as you're going to get on this site! Burtt is best known as a Sound Designer, the man who created Chewbacca's growl, for instance. But he moved into editing, and cut Star Wars II (2002) and III (2005) as well as Red Tails (2012) for LucasFilm.
On a happier note, he started on Death Race 2000 (1975), and has Kaufman's Invasion of the Body Snatchers (1978) and Alien (12979) to his credit, although SW and Indiana Jones cast long shadows over his career. As a documentary, there were not enough behind the camera interviewees, Dennis Muren and Ellen Poon being the highlights.