The Star Trek Movie
If you ever loved Star Trek, see it.  If you never loved Trek but love a good sci-fi action movie, see it.  If you just want a good ride with some touching scenes and some funny dialogue, see it.

If you can't stand William Shatner, see it.  He's not in it.

Of course, I may be the wrong person to ask.  I saw it in IMAX, and the combination of sensory overload , delight in the lovely dialogue and characterizations (and possibly also an empty stomach) hit me like a drug.  I think I was hyperventilating for most of the last hour, and I literally had to ask chikuru  to help me up the stairs on the way out of the theatre.  Bizarre -- I've never had quite such a spectacularly visceral reaction to a movie before.  So I may not be the most objective of reviewers.

Mind you, the movie doesn't fit 100% as an origin story to the original canon, but it doesn't really have to -- within the first few minutes it becomes clear that the central (interesting, tragic, crazy) villain is a time traveler, so the whole thing works nicely as an alternate timeline.  Further, it reads like an alternate timeline that will converge fairly closely (though not exactly) with the original Trek universe.  The conflicts and camaraderie between Kirk, Spock and McCoy are very believable as an early beginning to the central triad that defined the original TV series. 

Sure, OK, McCoy's eyes are brown instead of blue, Spock gets along a little too well with his father, and  Uhura has a force of personality more in keeping with the command officer of the movie franchise than the kittenish communications officer of the TV series.   You won't care.  Trust me.