Star Trek Into Darkness features a brief but important appearance by one of the franchise’s most legendary characters, portrayed by a man who’s just as iconic (and supposedly retired). Yes, we’re talking about Spock (or Spock Prime), reprised once again by Leonard Nimoy. What’s, ahem, fascinating about Nimoy’s cameo is the fact that it was so successfully kept secret for so long. Sure, there were whispers in the wind, but no one knew for sure that the rumors were true until they actually saw Spock Prime on screen. StarTrek.com chatted with Nimoy a few days after the film opened in the U.S., and he filled us in on how his Star Trek Into Darkness turn came to be, how it was pulled off and – get this – how he’d be willing to beam out of retirement again to work with J.J. Abrams on the next Star… WARS film.