[HPFGU-Movie] what plot points to add back in?

[Valerie Flowe]

So to expand on the DH-as-two-films discussion; what to add back in??? 
What specific bits of HP Books 1-5 have been deleted from Movies 1-5 that 
will have to be folded back into the storyline in Movies 6 and 7 in order for 
the series to end in a well-rounded, conclusive way that makes sense to most?
(especially now that we have the wonderful fortune to see DH fleshed out and 
not truncated into a quasi-acceptable Reader's Digest format!)
Valerie