Thursday Trivia...

To make things easier while mixing the American Graffiti sound track, George Lucas and sound designer Walter Murch labeled all of the film reels R and all of the dialogue tracks D, and then numbered each of them sequentially, starting with 1. When Murch later asked Lucas for Reel 2 Dialogue 2 - or more precisely, R2 D2 - Lucas liked the way it sounded so much that he made a note of the name for another project he was writing.