Harry Potter 7 book trailer

For my book trailer of Harry Potter and the Deathly Hallows by J.K. Rowling I will include many pictures from the movie and some pictures of forests because they were constantly on the run, camping in forests. I have not completely read the book so I am not sure how it ends so I may leave out some key points (big book). I have many ideas for music in my book trailer, one of which is wizard rock, I have yet to hear it though.