Gorman, I'm glad you liked the ideas. Based on what I know of the story, I think the controversy is gonna find you regardless of the poster...remember, we're living in "Jesusland" now; my president SAYS SO, dammit!
While "Dogma" got some Catholics pissed off seven years ago and they went and annoyed Kevin Smith, be aware that nowadays the religious climate is very, VERY different...you might get busloads of redneck Baptists showing up on your doorstep with pitchforks and torches once word gets out on your new picture. Tolerance is a luxury that this nation doesn't seem to have in excess these days. Remember, we're only 300 years away from burning witches here in New England. Anyone who doesn't seem to support Christianity run the risk of an accusation of being against it.
That being said, it's more important than ever that you make this movie. And I think it's a terrific idea that she gets crucified at the end...any other ending wouldn't ring true. If Jesus suddenly appeared today and began acting like he supposedly did 2,005 years ago, there's no doubt in my mind he'd be arrested, tried, convicted as a terrorist and an enemy combatant, and probably end up lobotomized in an asylum for the criminally insane, like Nicholson in "Cuckoo's Nest".
Another poster idea...show her rear from waist height, with low rider jeans and a thong strap showing, with a Celtic cross tatooed at the base of her spine. I dunno, tats and underwear do it for me, I guess! LOL!