Beliefnet has an article laying out 7 ways Jews and Chritians misunderstand each other when it comes to "The Passion of the Christ".

1) Christ's suffering is important
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The movie's violence brings many Christians into Jesus' world and helps show just how much he had to give up in order to give us the gift. In that sense, the violence is extremely spiritual.

2) Most of this really is in the Bible
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It is quite possible that much of what’s in the Bible is not historically accurate but Jews need to understand that when they say that this basic plotline is anti-Semitic they are saying the New Testament itself is anti-Semitic and hateful.

3) Most Christians don’t even entertain the question of blame

Most Christians believe that Jesus went to his death willingly, so the identity of the killers is utterly irrelevant. Jews are sensitive to being blamed because they have been, but they also need to realize that most modern American Christians view that as a peculiar sideshow.
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4) Christians feel persecuted
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When Jews criticize the movie, they need to realize that, unless carefully worded, their complaints will feel like not merely theological disputes but personal insults and attacks.
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1) Mel Gibson is terrifying

Christians need to understand just how scary a person Mel Gibson is to Jews. The comments from his father Hutton Gibson don’t represent ordinary country-club anti-Semitism but David Duke, neo-Nazi anti-Semitism.
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2) This is not ancient history
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Beliefnet member Shira writes, "My father could not go near a Catholic school around Easter because he knew he was going to get beaten up." It wasn’t until 1965 that the Catholic Church officially declared that the entire Jewish people were not guilty of deicide. Moreover, anti-Semitism is right now on the rise in Europe and the mideast.
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3) Christian support of Israel is irrelevant
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Obviously, supporting Israel does not give anyone a free pass to tolerate anti-Semitism in other realms. Besides, while most Jews delight in and appreciate Christian support for Israel they are also quite aware of their mixed motives.

--Beliefnet