I thoroughly enjoyed the other Harry Potter movies, however Harry Potter And The Half-Blood Prince was not faithful to the book, and was not interesting to watch. Nothing really happened. There was no remarkable climax, and many of the interesting parts that I found in the novel were modified to fit the two hours that this movie ran for.
Quidditch was a large part of the novel, but a very small part of the movie. A proper game was not shown fully. And the part when Harry and Ron stopped talking to each other was not shown at all.
If anyone did not read the novel, they will not find this movie at all interesting. I know the people that I was watching it with were not impressed staring at the screen for two hours, with nothing happening. Still, the scenes that were shown in the movie looked impressive, and their backgrounds too. The acting was great, and hopefully the next movie will be even better.
Harry discovers a potions textbook that tells me alternative methods to create potions, which gives him better results! This textbook is the property of the Half-Blood Prince. Who is this Half-Blood Prince?