Overall, I thought that the movie stuck to the book very well. I definitely did not like how the weasley house was set on fire because it never happened in the books. But, I did like how they stayed to the important details and only changed minor ones to make it so that the movie wasnt so long...for instance, following malfoy to borgin and burke and getting on the roof instead of using the invisibility cloak and extendable ears. Overall though, I think it was done really well...and maybe next time they should release the movie before the game because i beat the game a day beforehand and a lot of the scenes were in it (but not with ALL the movie details). To be honest though, it's probably one of my favorites thus far.