Movie Math: Night At The Museum 2, Terminator Salvation, etc

I heard that Linda Hamilton came in and did a voiceover for the film. How was that, if anything, I would only see that movie just for that.

On the subject of some of the 'fridge logic' things from Terminator: Salvation. (a) The agile Terminator was a prototype, and one that ultimately failed in it's execution. Also, they eventually produced some terminators like that, but mass production, especially at that point in time may have been more difficult. (b) This occurs a long time after the events of either T:2 or T:3, and so John has had a lot of bad experiences with them. Also, the Terminators he was able to identify with were ones that were specifically reprogrammed by the resistance. They didn't have free will anymore than other ones, they were just programmed to be good instead of bad.