Harry's evolving relationship with Dumbledore was spot-on, and Tom Felton's Draco Malfoy surpassed even the books. And Snape - let's just say that you won't want to miss Alan Rickman's portrayal of "the moment."
In the end, this movie captures the heart we all loved from the books - and that's friendship. Harry, Ron, and Hermione are there for each other, through the horrors and the wonders. Even more than wanting to be whisked off to the wonderful school of Hogwarts, what we all want is a good friend, and this movie lets us experience both vicariously for an hour or two.