To prep myself for the release of Deathly Hallows Pt 1, I re-read the entire book before going to see it ... mmm ... now not sure if that was the right thing to do - every scene etc is fresh in your mind and, rather than just enjoying the film, you tend to be distracted by missing (or additional) scenes.
Overall? A bit disappointed - from the opening scenes where the make-up dept couldn't decide on how to deal with Voldemort's 'nose' and obviously handed things over to the special effects dept - who couldn't think of anything other than to apply Photoshops' Blur tool

Despite this I've high hopes for Pt 2. The story will really come together so stick with it! I'll just have to remember not to read the book again before I see it

One parting shot ... we've all had the benefit of following Harry & Co in 'real' time as the books were released - young readers effectively grew up alongside the main characters - they started off at say, 7 yrs old and by the time they were reading the final book they'd hit 17. Unfortunately, newer generations of readers will have it all to hand in one fell swoop - new 7 yr old readers of book #1 won't pace themselves and could well find they are finishing the series by the time they are hitting 10 (or sooner). With the books getting darker and language become more complex and mildly 'adult' at times I'm not sure if the 'junior' fiction to 'teen' fiction premise that JK alluded to is relevant - in a sense it was a flawed concept. The same of course could be said for the films as can be seen from misseypootle's earlier post re a frightened youngster.
By the way, I watched the film in the same cinema JK had her private showing the night before its release ... and ... I could tell I was in the very seat she'd used - initials scratched on it and discarded Knipschildt choc wrappers still under the seat
