I read those books, it's not that bad, sure it's 30+ or more, but the movie will be ok, it can be as deep as the books. And one more thing, it's NOT porn.
Rosalinas, porn doesn't mean it doesnt have feelings. There's all kinds of porn. Soft-core porn is... well that, it doesn't show you as much, it's kinda "subtle"
Hardcore soft porn