I'm sort of checking the forum while I do other stuff... apologies.
"3) Prominent and thoughtful Jews are frightened by it. That's enough for me."
Why should it be? Judaism and Christianity are not the same religion -- they have much in common, but there is one "minor detail" that they simply will not see eye to eye on... that detail of course being Jesus, who He was in relation to God. Of *course* they are not going to like it. It says something they don't agree with !
There were plenty of "prominent and thoughtful" Christians who were bothered by the Last Temptation of Christ (it's true! Not just the rabid fundies!). Would that be any reason for the movie not to be made? No! The fact that someone doesn't agree with your take on an event should mean little to a filmmaker. The fact that someone who isn't your religion takes issue with the way you interpret the events of your own religion should mean even less, especially when their charges of racism are utterly unfounded and based in a basic nervousness about the entire dialog of Christ's death rather than what actually happens in the movie.
A Jew is going to look at the movie and think "no, that's not what happened." A Christian will be more likely to look at the movie and think "yeah, I could see that as being close to what happened." A Jew will be (understandibly) nervous about any movie that portrays that specific part of the death of Christ because that specific part is often used by racists to justify racism. That doesn't mean it's there.