EDIT: I found it, it was called "The Stars of Star Wars" Neither Lucasfilm nor 20th Century Fox authorized this film, so don't expect any footage from Star Wars movies. Instead, you'll get an exhaustive collection of interviews with the famed saga's key players. Cast members Harrison Ford, Mark Hamill, Carrie Fisher and Liam Neeson reflect on the blockbuster sci-fi series, while celebrities Magic Johnson, Sharon Stone and Christina Ricci cheerfully pledge their allegiance to the Force. It's out of print, but I'm gonna check it out from Netflix
There might be some interesting stuff from the Science of Star Wars specials a while back.