The reason I could not give this movie a 5 was because it left too many plot gaps for those people who haven't read the book. If you have seen the previous 5 movies, you can still definitely go see this movie and enjoy it though. Aside from that, this movie was by far the best in the series yet. The director, David Yates, does a far superior job with this film than was done with the first four. There's a perfect balance of humor, mystery and an appreciation for the essence of the series. Best of all, Yates takes the movie beyond the kids' film realm and captures an entirely different (grown-up) generation of fans.