Unacceptable differences between movies based on a book and the book.
Movie makers should make movies which match the book when they are making movies named after a book. Here are things that shouldn't be changed. After I made this I remembered the names of 2 characters from the Twilight books. Janes was the vampire who worked for the Volturi and caused pain as a superpower. I might have said her name when I was talking about Alice. Alice was a Cullen.