The long-awaited follow-up to “Return of the Jedi” is finally here. No, it turns out you don’t have to wait 16 more months for “Episode VII.” Director James Gunn (“Super”) has produced the post-George Lucas “Star Wars” sequel fans of the original trilogy have been hoping for, and it’s called “Guardians of the Galaxy.” Demonstrating the pervasive influence of the iconic franchise, Marvel’s latest comic-book flick borrows many of “Star Wars’” hallmarks.