A fun romp but it was NOT Star Trek and here is why.

Rating: 4/10 (9 May 2009)

The main problem this movie has is that it violates the prime directive of time travel and doesn't even care. Star Trek established that if you go back in time and change something then every thing that happened and existed since then never happened. You might as well just trash all the old star trek movies and series because it never happened.
And I am supposed to believe that Spock the one person in the universe who understood the mechanics and the math of sling shot time travel would accept the destruction of Vulcan and 6 million of his people and all the repercussions that, that will have on the future with everything the Vulcan people did and invented in the universe. This is the pinnacle of absurdity!
What would have happened is Spock would have convinced Kirk that the time line needed to be corrected and his own father saved. They would have engaged the bad guy and recovered Spock's future ship then traveled back to the original disturbance and destroyed the bad guy again in the past saving Kirk's father and probably destroying the alternate future enterprise with Kirk in the battle. Time line restored. 6 million Vulcan's saved. Jump to actual time line Kirk graduating star fleet and being assigned to whatever ship he was on before the enterprise.
Spock of ALL people would not allow Vulcan to die in the past because in 200 years he will be 2 minutes too late to save Romulus in the actual time line.
Also I found the coincidental meeting of Kirk and Spock on the ice planet ridiculous and then the changing of all Star Trek cannon to claim the Scotty invented long range in transit teleportation when he did NOT even more absurd. He was dead by the second generation star trek episodes which had no such technology! Why would you do that since Spock is from the even farther future where the technology would have existed and Spock could have used it anyway without letting Scotty see or know future secrets.
I find it odd and amusing that Paramount would screw up star trek cannon and time line so terribly while the Star Trek fan films can keep it straight. Maybe paramount should have hired the people that make Star Trek: New Voyages to reboot the franchise?