Just saw the movie yesterday here in the UK.
Here's my little review if anyone's interested....
[9/may/2009] Score: 7/10
One of the things I dreaded about this before watching was that the producers would do a "Star Trek High" style of movie, bringing all the characters together as teenagers to save the universe. They, just, about, thankfully avoided that temptation, but it's a very close miss, and I'm still not quite sure why the Federation would give a crew of semi-experienced teenagers and young adults control of a flagship of their fleet, but I guess there was less time in the final script to develop the characters through a few more years of maturity, bringing them together more realistically.
There are two reasons why I downgraded Star Trek from what is a good thrill-ride, and both owe their origins to "Galaxy Quest", so if you know that wonderful satire of the whole SF cult community you'll have a clue to what I mean.
The first of these is the "big mysterious alien super-technology device" which appears here as "Red Matter" a weird material with special properties; and the second is the "why the hell to they have THIS on the ship!?" scene in which we see the intrepid crew of Galaxy Quest, oops, I mean the Enterprise, have to confront an apparently useless but challenging part of the ship to make their escape, in this case the plumbing system.
From a writer's point of view they are both useless and unimaginative devices, which appear to say the screenwriters of Star Trek lack originality and/or are paying an over-enthusiastic humorous tribute to Galaxy Quest, and all that came before it. And that made me sad to think about what was otherwise a good piece of entertainment.
Star Trek will also surprise the viewer in introducing the whole genre anew. In the same way Casino Royale rewrote and restarted the James Bond movies, so Star Treks starts afresh, proposing a new parallel universe with a new history to-come, when they use time travel to unravel everything we've come to know about the characters and their universe, for example the origins of James T. Kirk, the fate of Vulcan, and so on.
This, in a way, is the good part, as it will offer future writers the opportunity, if they can restrain themselves, of developing a new plot for the whole, new Star Trek universe, but will upset the expectations of many existing fans.
Verdict: Go, carefully.