That's the thing though. I think stephanie meyer actually does care about this. She really tried, and this was her product. Even her best efforts were complete nonsense. It's like it was written by aliens who observe human behavior but do not experience it. Edward's response to pregnancy is just one example. Another is after they have sex. Bella stands in the mirror and she's bruised to hell, so it was obviously really rough sex. She seems pleased. She keeps bugging him for more rough sex and he turns her down because he's obviously homosexual and this was just an experimental phase with girls (my gf read the books and said Edward was supposed to be a virgin at this point).
Stephanie Meyer didn't write the screenplay. Books and movies flow differently, and it is the job of the screenplay writers to translate the books to the movies. The screenplay writer obviously didn't give a shit except for the paycheck. I don't know how far it deviates from the book (never read them), but a screenplay writer should be the one tweaking dialogue to make it less terrible.
Another cool movie to check out is The Room. Just like Troll 2 and Twilight, it's mind boggling. A scene will start with the main guy doing some rant to himself like "I did not hit her!" then a second later "oh hi mark!" then like two seconds into the conversation ask "so how is your sex life?" It has entire scenes where the plot does not advance at all and the characters are not strengthened, like the scene in the flower shop. The 'sexy talk' if you can even call it that is hilarious. Just search youtube for The Room. Almost every scene is flawed beyond belief. The main character flipping out and smashing everything in his room is the most low energy flip out ever.
I've seen The Room. You really aren't doing the terrible dialogue justice. It didn't merely have bad dialogue, it was like they played mad libs as they were writing it, so shit just didn't make sense or have any logical flow what-so-ever. Plus, it has boobs. It was ok in terms of bad movies, but nothing all that special.
There is bad acting where people who are paid lots of money just plain suck, then there is bad acting where you have a much smaller budget and take what you can get. Professional actors doing a shit job isn't funny, it's annoying. Bad actors getting paid next to nothing doing a shit job is hilarious because everyone can sorta relate and imagine themselves in that acting situation, often times probably able to do a better job. You kinda root for the actors in Troll 2 because they are everyday people who have real jobs and just kinda stumbled into being in the movie. Kristen Stewart and the rest of the Twilight cast were paid a ton of money to put out a steaming pile of shit.
If you haven't seen the documentary on Troll 2 ("The Best Worst Movie" is the title, iirc), you are missing out on one fantastic film (for real, great documentary). The Troll 2 director is completely dillusional and truly believes Troll 2 is a good film and gets super pissed when it's suggested to be otherwise.
EDIT: Another good bad movie is "The House" or "House" - about a guy whose kid is taken by a haunted house he inherited from his aunt. Special effects and "wtf" decision making by the characters is hilarious. Released sometime in the 70s.