it almost feels voyeuristic to look at Star Wars characters drinking coffee and hanging out on set, but hey, that's how movies are made. These behind-the-scenes photos were taken on set, where Luke could kick it with Darth Vader out in the open, and Princess Leia could unravel her pigtails and lounge around on the floor. And in case you were interested, here are a few numbers to go with the world's favorite sci-fi: Star Wars has earned $4.5 billion in ticket sales worldwide, including $2 billion in the U.S., and the films have generated an additional $20 billion in merchandise sales. Take that, Harry Potter. [Mental Floss + Forbes]
