"You still seem unable to grasp that Catholics do not believe Mary had other children and that scripture backs it up"
No, I grasp it but that doesn't mean that I agree with it nor that it precludes a different interpretation of the scripture from being given. The article was written from the Roman Catholic perspective and a defense of the movie was called for which entails exegesis of scripture.
There are in excess of ONE BILLION Catholics and Orthodox in the world who would take issue with the way this movie portrays Mary.
The fact that some post-sixteenth century denomination isn't bothered by it is irrelevant.