I am a huge HP book fan and understand that it is impossible to cram all the content from a 700 page book into a two-hour movie. I am OK with changing around some things in the interest of time, plot-condensing, and money, as long as the core of the book is still there. Overall, it told the story well, except for the Weasley house Christmas-time scene. NONE of that was in the book. I know the movies being based on the novels gives them license to change things, but to me that scene dishonored JK Rowling's hard work a little. The acting was fantastic and the special effects were awesome, so all in all - a good movie.