Spoiler ALert***
I just saw the movie and thought it was pretty good, but definitely a kids story. A few things really bothered me though. The biggest being the sound effects. It was like the sound effect crews went wild. The brooms has jet sounds, the giant snake hit rocks like Tow Missles striking Iraqi tanks. It was over the top and detracted from a few of the scenes.
The only other thing I did not like were the holes in the basic concept of the world. For instance, they are in a magic school and during a game of broom rugby, the ball goes after harry. The entire staff watches and does nothing as the ball nearly kills him and destroys the bleachers and other parts of the field. In the end, it is an eleven year old girl who has to save the day.
The other scene that sticks out in my mind is during the wizards dule class, Harry and the little blond kid are brought up in front of the class so the instructors can teach defense spells. The teachers then step back and let two kids whip offensive spells back and forth without as much as a blink of an eye. There were other smaller instances, but those two scenes pulled me out of the story which is a bad thing for the viewer.