I enjoyed the movie even though I thought it was unnecessarily complicated. Spock from the future and future Spock meeting past Spock was all a little too contrived for my taste but it was interesting to meet the characters at the beginning of their careers and see what they were like before they became the personalities we are all familiar with. Enjoy the action and the characters and don't get too involved as to whether anything makes much sense (even in the world of Star Trek).