Last night, Gizmodo's Jason Chen listened to director McG's Blu-Ray livecommentary for Terminator Salvation so that you didn't have to. You can read the whole thing here, but if you're in a rush, here're the, uh, highlights.
Apparently oblivious to the fact that the franchise is up for sale and no-one knows who future owners will be or what they'll want, McG announced that he'll make two more Terminator movies, the first of which will feature Sarah Connor, even though "he's not sure how he's going to pull that off." We'd be more worried about future Terminator rights holders agreeing to him making two sequels to a critically-savaged movie that flopped at the box office (in comparison to expectations, at least; it's still in the top 20 movies of the year) and failed to prevent the bankruptcy of the owners of the property if we were him, but maybe there's a reason we're not successful Hollywood producer/directors and he is.
He was also disappointed that Salvation wasn't the best movie in the series so far, but thinks that it was better than T3 (which he "didn't really pay attention to"; he also only watched one episode of Terminator: The Sarah Connor Chronicles. Feel free to start your fuming now), and "tried to introduce credibility" back to the franchise. And, maybe most importantly, he showed that he knows movie direction:
7:15: Here's a tip that will go down in history from one of the film greats. "There's two elements that go into filmmaking. There's sound, and there's the picture."
There's more in Jason's epic journey into one director's ego, including how McG feels about the Charlie's Angels movies these days, that Moon Bloodgood topless shot and the downbeat end to the franchise that was possible. Go read, if only because Jason suffered for us, and because he's right about Community.