This is probably my most favourite Harry Potter movie and book (though the others are not that far of being admired the same). If you haven't watched it, please watch the others in order and just look forward to this one, it enhances the characteristics of all of the previously unidentified characters. Which is surprisingly so moving and astonishing, due to the fact that I had no idea Harry Potter could seem family friendly but at the same time so dark. This movie makes you want to cuddle up in a blanket, a snack in your hands and all of the lights are turned off while you watch, goosebumps all over your body, in pitch black and in cinematic volume, blasting comfortingly in your eager ears.
Trust me, this is one of the most beautiful and persistent movies out there. So much happens that you could re-watch it everyday and still discover a new concept but also so little happens so that it is so memorable and you could probably summarise it in a few sentences. But overall, this is one of those movies where you would have to watch it to understand it fully, words genuinely can't describe it sufficiently.
The Half-Blood Prince authenticates what you are meant to perceive when the Battle of Hogwarts is on the brim of occurring and leaves the audience begging and craving for more. I adore each and every character, even the 'bullies' and especially the only unfortunate, and this is because, no matter what, even if their character is meant to be hated, they depict their tendencies into film in the most interesting and inexplainable way.
Please, I advise you fully to watch this movie. After the other ones of course, but probably read the book and then watch the movie.
I promise you, you'll probably love it as much as I do.