Believe it or not, it won't be the duties of running California that will keep Arnold Schwarzenegger out of Terminator: Salvation. It's technology. TotalFilm.com somehow got Salvation director McG on the record to say that Schwarzenegger was on the set to film a cameo, but since his character will be half-CGI, the technology has to cooperate before he actually sees screentime.

“We’re trying to synthesise a human character with a CGI character and that may or may not have something to do with the T800,” McG told them with an intended wink. The T800 is one of the several "models" ascribed to Schwarzenegger's original Terminator character, but it's unclear why McG would make the guy CGI this time when he was pretty much all human the first three times around. But, as George Lucas as taught us, why use people when you can make computers do it?

It seems insane to me that McG would let uncooperative technology keep a Schwarzenegger cameo out of his movie, and this is probably just his tamping down the rumor mill for a while. So, not like you didn't expect it, but we'll probably see at least a little Ahnuld in Terminator: Salvation-- just in time for his governorship to be nearing its end.