That's the general tone taken by the movies' fans. Love the film or you are Satan. Even if you are a Christian.
One is apt to find that which one is predisposed to seek.
My impression of the writings of those who view "The Passion of the Christ" in a positive light (and many of them have been moved), is that they want nothing but good for mankind. At the same time, they express an awareness that Satan is at work, today, in the world. But yours is the first post I have seen making the accusation, "Love the film or you are Satan."
I don't think you meant that literally. And if you undertake an honest reflection, the impression left on you by defenders of the movie will soften.