Nemesis is the worst Trek movie... well, immedeately after ST5. Now, my reasons my contain SPOILERS, so skip over this if you do not want the (thin and boring) story ruined for you.
* The movie starts off with a bizzare start with the death of the Romulan Senate by way of a radioactive agent. That isn't so bad, but the delivery of the virus (I think it was the woman's necklace?) and the visual (A holographic DNA strand makes the ceiling turn into the special effects from Hackers) was just stupid. Though I'm no scientist, I don't think radioactive things turn people (or Romulans) into stone; this is sci-fi though and it's too early in the film to judge...
*The wedding sequence, complete with a half-in-the-bag Picard, a crooning Data and two quick crowd shots of Wesley (!), was really lengthy and really didn't tell us anything more than Riker and Troi getting married. This is an easy fact to establish but it took it's dear sweet time to make sure the audience knew it was a wedding and that Guinan was in attendence. This dragged on for five minutes of my life that I would like back.
*The villian in this has shades of Kahn and I can say that Tom Hardy tries his damnedest with what little he has. I definitely would've enjoyed his character a lot more if they established more of a relationship between him and his subcommander (Ron Pearlman from Alien Resurrection!) but for what it's worth, I enjoyed his part quite a bit, especially his introduction.
*Star Trek seems to have fallen for "Bigger Is Better". The new Romulan Super Ship is incredibly retarded; it looked more like the Borg ship from "Descent" than Romulan. The fact it shoots radiation doesn't make sense either. Even if a radiation is "theoretical", that doesn't mean it doesn't exist and considering how many ships are flying through space in FTL travel, you never see anyone getting sick from this particular radiation. You'd think that the ship's shields are able to deflect it or such.
*The dune-buggy thing was stupid. I won't even touch on the plot errors in using it, so lets move on.
*Data's fate was Spock v.1.5. He dies, rather badly, but not before downloading his memory into B-4. This keeps the door open in case Spiner pulls his head out of his ass and decides to do another ST movie. Frankly, as much as I loved him in the series, he gets way too much attention. I want to see a movie about Riker kicking ass and macking on women like when he was on TV. He was a slick customer; if he wasn't breaking it out with some trombone jazz music, he was playing poker or bedding hot alien girls or shooting people with a Phaser Rifle.
*The final fight left me feel as empty as I did walking out of Batman Forever: all style and no substance. Yes, blowing out the viewport was pretty cool (X-Men director Brian Singer is the Conn officer sucked out. Serves him right for that peice of cinematic crap.) but the ramming was done all wrong. It seemed almost calm and slow. Admittedly, the Enterprise was badly beaten but when you ram something, you don't stop ramming. He should've shoved that saucer section straight-up that bastard's ass.
*Data flying through space was about as unintentionally hysterical as Jeremy Irons in "Dungeons And Dragons".
*Shizon's fate was also really silly. I do like what LOAF had said, that it should've paralelled one particular TNG episode. And let's not forget the obvious Fellowship "badass" shot as he slowly talks to Picard. Rip-off.
All in all, this movie made me hurt. I didn't care for First Contact, but it was a fun romp. Insurrection gave me a headache but I finished it without too many problems. Nemesis: I didn't pay to see it, but I would like my money back.