Yesterday I got to see an advanced screening of this movie with many other MIT students. It was a lot of fun, though there were a couple mishaps regarding getting there (for some reason handicap-accessible taxis can't be counted on to arrive at a specific time, according to one company), but that's all fine now.
The movie? It was great! The only thing I will say is that the director overdid the relationship between Harry and Hermione (because in the book that was solely a figment of Ron's imagination).