Harry Potter and the Half Blood Prince is probably the most performance driven of the Potter films so far. Though it has it's moments of visual brilliance, the actors have matured as well as their characters. The performances they deliver are interesting and captivating. Harry and Dumbledore are trying to figure out Voldemort's evil plan, the Death Eaters reek havoc and Malfoy is a tormented soul helping the Death Eaters gain access to Hogwarts. This film sets the stage for the next two. Something to look forward to.
PS : They show the trailer for Where the Wild Things Are before the film, and though we've sen it on the Internet, it looks awesome on the big screen. I got a little choked up watching it. Can't wait for this one.