Let's face it, most people going to see this movie are Potter fans. We've all seen the previous movies and likely read the books. To no surprise this movie is more dark in it's theme then most. The story line has brought us to a darker climax before the story concludes in part two of The Deathly Hallows.
My personal view is to neglect taking your child younger then 8-9 unless the are mature for their age or not easily frightened.
The older Potter fans should enjoy this movie, but know some fans left with tears in their eyes.
Our specific crowd at the movie cheered, cried, and we had the I'll timed scream from a group of young ladies. Overall it's a great movie and a good rendering of the book.