After seeing this film this morning I'd have to say this prediction probably won't come to pass. "The Passion" is a movie for the faithful and the believers and sometimes not even them. The film's gore and unending suffering is painful to watch and overshadows the message.
If the Christian community had not been neglected for so long by the mass media this film would be quickly forgotten. There was a time when the great Hollywood Directors recreated the stories from the bible to everyone's benefit, now every easter we're lucky the networks drag out half century old faded movies from an era when Christianity wasn't a four letter word among the Hollywood elite.
My prediction is that many who see "The Passion" will wish that they had not, but that the movie's success despite the fact that it is such a problematical film may have a very good and tangible benefit into goading Hollywood into producing more biblical films that are true to the Christian Community (IE -- NOT the last temptation of Christ variety).
We can only hope.
Jesus I: The Crucifixion
Jesus II: The Resurrection
Jesus III: The Return of the KING!
Hollywood may or may not get the message if the film is an outstanding commercial success. Imagine what Gibson could do with current technology in retelling things like "The Ten Commandments," or "Noah's Ark." They might not like it, but they are already thinking about jumping on board. My hope too, is that we don't see a bunch of Methodist leftist liberation theology Jesus types.