Judging from every trailer, I can safely say that this movie is going to be the most accurated to the book by far. Each movie has cut entire chapters out before, but the fact that they're including each and every one of them is a huge step up. And Harry glancing out of the mirror fragment brings a tear to my eye because it looks exactly like the chapter 2 portrait.
It's OK to reread the book before it, because almost every single detail will be there since there is about no fluff in the Deathly Hallows they can cut. I think the movie ends at the middle or the end of Chapter 23 "The Wandmaker" in the book, so read up to there.
Kimi wa ne tashika ni ano toki watashi no soba ni ita
Itsudatte itsudatte itsudatte
Sugu yoko de waratteita
Nakushitemo torimodosu kimi wo
I will never leave you
