IAE having trouble deciding if they should reread the last Harry Potter book before seeing the movie in a couple of weeks?

Should I just go see the movie and enjoy it for what it is?

Or should I refresh my memory of the book and compare the movie to it at every turn? "They left out this and changed that."

Also, any guesses as to where they will end Part 1 of this 2 part movie?

[SPOILER](/s"My guess is after they escape Malfoy Manor and Dobby... you know")