Details: More information can be found at https://www.imdb.com/title/tt0417741/ and https://www.warnerbros.com/movies/harry-potter-and-half-blood-prince/
I wrote another review for The Order of the Phoenix and a lot of my thoughts are the same. The acting is better because the actors are older and better than in the prior movies. The story is okay, but still scatterbrained as it tries to cover too many things. The special effects are about as good as before. It’s an okay movie that is about as good as Order of the Phoenix. However, it’s still just a slightly subpar movie overall. Generally, only watch Harry Potter movies if you are a big Harry Potter fan.