Failed GA
Citations in lead are unnecessary.
"Dolores Umbridge, a bureaucrat that slowly becomes an authoritarian figure in the school." It should be "who slowly..."
Plot is far too long.
An unnecessary cast image: doesn't the poster show Potter and all his pals?
The casting section looks thin. Some relevant information could be merged to relevant entries, ala Children of Men.
There is very little information on book to film changes. 
Still, the Reception and Distribution sections look excellent.