“Star Wars: Robot Chicken Episode II” is a go. Days after the Adult Swim show landed a best animated series Emmy nomination for its “Star Wars” episode, the cable network is moving ahead with a sequel that will premiere in the U.S. “It doesn’t even seem real — getting to make Star Wars twice!” said “Robot Chicken” co-creator Seth Green, who is set to direct the second “Star Wars”-themed episode after winning an Annie Award for helming the first one.