Watched it last night. I know I'm going to echo many other reviewers by saying that this movie that too little John Connor and too much Marcus Wright. And even then, they never really developed the Marcus character very well.
The cinematography, I felt, was rather poor and lackluster. There are pretty wide-panning horizon shots, but the movie tries too hard to tell two stories at once at any given time, cutting in and out of either so poorly. Guy sees jacket, camera cuts to some kid in a foggy room, cuts back to guy who is now wearing the jacket in a completely different place...
Actions scenes were... alright. Sorry, fire explosions and whatnot are just too commonplace nowadays. The only interesting bits are from the Motorterminators and the awesome humming sounds of the larger Terminators (with THX... oohyeah.....).
Is it worth watching?
If you like action movies in general, yes.
If you're a Terminator series fan expecting to learn more about the canon, no.
Nitpicky bits ensue:
» Click to show Spoiler - click again to hide... «
Kyle is one real stoner. Marcus asks what a Terminator was, what day/year it was and Kyle didn't even think it was strange. I mean, seriously, somebody HAD to be living under a pretty HUGE rock to not know what Judgement Day etc. was in that setting.
Then Marcus gets shot at, bombed, mined, and even napalmed. Yet, he just gets up and goes "Yeah, I'll help you. No questions asked." Now if only that sort of persuasion worked on real people....
Another part of Marcus' script that ate at me was how they missed the opportunity of his last kiss scene. Slipping in the (god-awful cheesy) line of "So, that's how life tastes like." after kissing Blair would have been a natural thing to do. But...
Interesting observation:
» Click to show Spoiler - click again to hide... «
I've tried scanning the net for it, but found no relevant info about this: just before the scene where Kyle gets picked out of the line in Skynet HQ, the camera pans across the lines of humans in a factory floor. But for a brief second you can see four figures standing in front of a second-floor window. Any idea who/what those were?