Harry Potter fans are the most obnoxious group of people to sit through a movie with. They laughed like idiots at the most inappropriate times and wouldn't stop like they were all high or something it almost completely runined the movie experience for me.
The movie itself was kickass. I haven't read the books but my roommate did and she said there was a few things they took liberties with. I had fun though. I love most of the actors in this. Rickman, Fiennes, Helena Bonham Carter, Isaacs, Oldman were all extremely satisfying. There were a lot of disturbing elements that got me all emotionally revved up. Harry Potter takes a lot of abuse from people. It bothered me throughout most of the film that he was the boy wonder and he'd always end up in trouble because no one was watching his back but in this one it seems like people finally got the gist of things and it was plausible (with him being the only one to witness the murder of Cedric) that people doubted him.
All around I thought it was a great film.