My issue with the first book was that I felt it had no story to it, especially in comparison to the second and third instalments. So naturally, this lack of story transpired on screen. I also had serious issues with Anastasia's "Yes Christian, I love Christian, where do you want me Christian?" attitude - she had no back bone. I am by no means a feminist but I am a woman and I didn't like how weakly she was portrayed in the book. She is an educated woman and for the sake of other women reading, I just got very frustrated.
There must be millions of reviews of the movie online so instead of going in to huge detail, I'm going to mention what stood out to me.