I knew that certain parts were dropped for the HBP film. So little backstory on Voldemort isn't really going to help Harry in the next film. A couple things that completely boggle me (besides Wright's and Radcliffe's lack of chemistry) are the fact that Flur and Bill were written out , no revelation about Snape and the prophesy, Harry not hide his potions book with the diadem, and Dumbledore not telling Harry what the Horcruxes are. I feel there are so many plot holes that now needed to be corrected. I will hold judgement until I see it again (DVD) to figure out if I can look at it simply from a movie perspective and not compare it to the book.