Description from Netflix: The sixth year at Hogwarts School of Witchcraft and Wizardry kicks off with a bang for young Harry Potter (Daniel Radcliffe) when he inadvertently discovers a mysterious book that sheds light on the sordid life of the evil Lord Voldemort. Preparing for inevitable battle, Harry and Dumbledore (Michael Gambon) turn to professor Horace Slughorn (Jim Broadbent) for help in pinpointing the weakness in Voldemort's forces.
Comparing it to just to the other Harry Potter movies, it's pretty bad. Not as bad as the Prisoner of Azkban, but bad nonetheless. They changed things that didn't need changing. They skipped over stuff that should haven't have been and put stuff in that could have been cut.
Regardless of all that, the movie itself is just boring. It wasn't into it at all. Sadly, this same writing/directing team is in charge of the last two movies. I think they dug themselves into a hole for the next two movies. I can't say I am inspired to ever watch it again.
My ranking of the books from best to worst: Prisoner of Azkban (3rd), Half Blood Prince (6th), Deathly Hallows (7th), Sorcerer's Stone (1st), Goblet of Fire (4th), Chamber of Secrets (2nd) and Order of the Phoenix (5th).
My ranking of the movies from best to worst: Goblet of Fire (4th), Sorcerer's Stone (1st), Chamber of Secrets (2nd), Order of the Phoenix (5th), Half Blood Prince (6th) and Prisoner of Azkban (3rd).