Dream or Nightmare? You decide

So last night, I woke up in the middle of the night from a dream where I went back to work at Pixar. The movie we were working on a was a new Star Wars movie. The Empire is trying to build a big weapon, which was a giant cigar shape that sits underneath a Star Destroyer (I guess they hadn't come up with the Death Star thing yet). At the end of the movie, the star, Bruce Willis, hotwires the device so that when the Empire fires it, it blows up.