There’s really not much more to tell you. The rules are pretty simple. Locate R2, write down where you saw him in an e-mail, and shoot it off to email@example.com with “STAR TREK Easter Egg Sweepstakes” in the subject line. I couldn’t care less about winning the prop, but it would warm this “Star Wars” geek’s heart to see the plucky little droid pop up in a “Star Trek” movie. Maybe J.J. will figure out a way to kill off Jar Jar for his second “Trek” go-round.