So I just came back from seeing it and I really didn't think it was as bad as everyone is saying. Not saying I fell in love with it, but I enjoyed it nonetheless. Just a few things:
1. Hehe Emma Watson cleavage shot in Gringotts
2. Did they really send Slytherins to the dungeon in the book? I don't remember that at all, and it didn't sit well with me.
3. I wouldn't say the "19 years later" characters look odd so much as unconvincing.
4. The Harry-Ginny kiss seemed sorta unnecessary, especially given Ron and Hermione's moment maybe not five minutes before.
And this is not really related to the film itself, but every single preview shown before the movie looked like shit. Especially that new movie with the werewolf guy from Twilight. I can't believe I'm saying this, but I think he might be more wooden than Hayden Christensen.
Edit: Taylor Lautner, that's his name.