you people who think they are "changing the book" and adding parts that dont belong to the movie need to THINK - a flashback w/ Hermione's mom, if this is what they will be doing, IS in the book because Hermiones does discuss her parents. It is not like there is no mention of the Grangers whatsoever. Adding flashbacks does alot ....look at LOTR 2nd movie where they flashed to the appendices of the book and to past differences w/ Faramir and his dad.