RedLetterMedia has made some EXCELLENT reviews of Star Trek movies (and Star Wars, and Avatar, and many others). These have been uploaded onto YouTube fairly recently (2012) Star Trek Generations Star Trek: First Contact As much as I liked First Contact generally, I found his wit and critism to be severe but fair. And sometimes painfully spot-on. Star Trek: Insurrection I was impressed by factors I had not considered before, especially the comparison with the DMZ native Americans. Star Trek: Nemesis I liked the Nemeis review best, perhaps because I respected Nemesis the least of all the films. Yes, worse than I and V. His criticisms were spot-on. I was impressed.
I have been reading a bit about the history of the sci-fi genre and it's corresponding media ghetto.
I suggest some (in)famous essays:
http://www.verysilly.org/lethem/lethems_vision.html (the link seems to have wandered around)
The Squandered Promise of Science Fiction (Why Can't We All Just Live TOgether?), by Jonathan Lethem
Things Are Tough All Over, by Ray Davis.
A concurrent e-mail exchange between Davis and Lethem is also a worthwhile read.