Perhaps you and your wife would have been less offended by the movie if you had been properly educated about sex and sexuality rather than learning about it from cheap porn magazines.

The statement that The Mists of Avalon is pornography seems to me to come from an idea often presented by religious establishments: that sex is evil and that the only way to "protect" one's children from it is to keep them so ignorant that they cry "Porn!" at the sight of anything remotely sexual... a practice you seem to be a quite obvious victim of.