We can expect the familiar antics, and jokes from each character that you've come to know, but our trio (harry, ron and harmoine), do not really evolve as people. It's the supporting characters that shine through this time. Expect to see Malfoy, Ginny and Dumbledore in new light that balances the film giving it an overall tone of seriousness. This movie was a very transitional one in the sense that it picked you up where you left off in Order of the Pheonix and leaves you ready and contemplative for the seventh movie. It was definitely more psychologically stimulating than action packed and adventurous. Of the series, this movie had the most excellent and believable computer graphics, making the movie flow beautifully.