Actually, no. In his latest interviews, Foxman has admitted that the movie is NOT antisemitic. I am certain that he was gritting his teeth as he said it, but he clearly understood that he had lost that battle utterly and completely. His current bleat is that the movie might inflame and provoke an antisemitic response among a few who would interpret it incorrectly.
As a Jew, I try not to interpret Christian scripture to Christians, a simple lesson that Idiot Foxman seems unable to grasp. I will see the movie to deepen my understanding of the seminal event of Christianity, the environment I live in.
Gibson makes no claim to have filmed a "fifth gospel." What he does claim is that his film is consonant with the four gospels that were his reference and inspiration, and that it represents his view and interpretation of events described therein.
Questions of historical accuracy that do not arise directly and EXCLUSIVELY from those gospels are simply not valid, and do not deserve consideration as criticism of the film. To unbelievers, this is little different from warp drive, time travel, alien invasion, ghosts, dragons, or other fantasies. You either suspend disbelief and appreciate what is presented for its entertainment or illustrative value, or call it balderdash and walk out.
But stories can tell us a great deal, because the imagination is perhaps the greatest of laboratories for human ideas, thought, and interaction ever conceived. It has been exploited since ancient times by great authors. So whether you consider the gospels to be fiction, fact, or somewhere in between (another ancient writing technique,) they remain "the greatest story ever told", and certainly worthy of exposition.
Foxman be damned. He does not speak for me, or for any but his small clique.