The following is a quote from filmratings.com:
"An R-rated motion picture, in the view of the Rating Board, contains some adult material. An R-rated motion picture may include adult themes, adult activity, hard language, intense or persistent violence, sexually-oriented nudity, drug abuse or other elements, so that parents are counseled to take this rating very seriously."
I believe that there are some serious adult themes in this novel. the scene during child birth was very intense and graphic. It is my opinion that the R rating would be best suited for the movie if they made it. This is my opinion, and i'm entitled to it. I personally believe that putting it into a PG-13 catagory would mean toning down the very themes that made the novel what it is. A personal choice to not go a see a moving based on it's rating and not the content, is just that: a personal choice. I, however, choose not to go to a movie based on it's content.
If it's a moral issue with stephenie, I'm not saying she should give up her values. I'm just stating that my opinion is that the novel in it's context now, as it is, is very mature, and is best suited for mature young adults.