Robot Chicken co-creators Seth Green and Matt Senreich are putting their chicken scratch to good use as Adult Swim presents a sweepstakes tied to the Emmy-nominated Robot Chicken: STAR WARS special. Beginning July 23rd, fans of the series and the legendary Star Wars franchise can log on to AdultSwim.com to enter for a chance to win a grand prize package that includes a copy of the Robot Chicken: STAR WARS script autographed by the series co-creators – and self-admitted Star Wars fanatics – Green and Senreich. The sweepstakes kicks off just as the special, which was recently nominated for an Emmy Award for Outstanding Animated Program (for Programming Less Than…