The crew of the USS Enterprise are back for more space adventures in "Star Trek Beyond", the latest episode in the film reboot of the popular science fiction series that marks its 50th birthday this year.The television show, which introduced characters like Captain James T. Kirk and Mr. Spock, the half-human, half-Vulcan first officer, followed the crew's missions and has spawned movies and other series since debuting in 1966. In "Star Trek Beyond", Chris Pine and Zachary Quinto return as the younger Kirk and Spock alongside Simon Pegg as Scotty and John Cho as Hikaru Sulu and this time, they face a new enemy when they are shipwrecked on an unfriendly planet."This movie has definitely a retro vibe to it," Quinto said at the film's London premiere on Tuesday. "It's pretty remarkable for something like this to last for half a century and we're all really proud to be a part of it at this significant, celebratory milestone."Quinto was joined by his co-stars, including Pegg who had the additional role of co-writer."It was a big responsibility, 'Star Trek' is precious," Pegg said. "We wanted to do it justice in the most faithful way but we approached it like you would any writing job ... studiously and carefully and never taking it for granted." The movie is the third film in a recent relaunch following 2009's "Star Trek" and "Star Trek Into Darkness" in 2013. Asked if he would be on board for more, Pine said: "Yeah, of course ... If this one does well and they choose to do another one ... As long as all my friends are back, I'll be back."