In the Book
In the Movie
The movie opens with Rosenberg speaking to Gray Grantham, where in the book he is speaking to one of his aides
One of the biggest differences between the book and the movie is that in the book, there seems to be a burgeoning romance between Darby and Grey, which ends with them meeting up after she flees the country. In the movie, they keep it very business like, and there is no love story ending where they end up on a beach, talking about the future
In the book, while Darby is in the offices of the Herald with Gray, finalizing their story, Mattiece's hired associates wait outside of the building hoping to end Darby's life as she enters or exits. In the movie, there is no such watching of the building
Darby cuts her hair very short and dyes it several times in the book while maintaining Julia's signature red, curly locks in the movie.
Voyles is described as portly in the book but is quite tall and slim in the movie. Also, Fletcher Coal is bald in the book while being covered in curly hair in the movie.