lol I think they will make it into a movie. Sure they'll take a few things out, but have you seen the movies they've been making lately? WOW! I don't think they'll take too much out. They'll probably dress Lucy up in some hoochie outfit, and consider that nude. lol
Who knows they may let Yuka and Kouta be together and just call her his childhood friend, and about Mayu more than likely they'll keep her story in there, just not show too much on the subject. There's plenty of movies out there with people being rapped and/or molested. Haven't you ever watched lifetime movies?!? Ahaahhahah!
Anyways, I think it'd be a great movie and I'd watch it. I love the anime.