*CRIES* Oh my gosh, I had this long post and my computer froze. NOO. Okay well here's the shortened version. Enjoy.
As much as I love the movies, I have to agree that the most recent ones are far from what I expected them to be when I read the book. Whilst I think most characters are portrayed wonderfully, others, I have to wonder if the script writers have even read the books.
I start my rant with Hermione. I mean come one, people, yes Emma Watson is gorgeous and I'd love to be her for like a day, but to me, she isn't the Hermione I first read about. Although over the years, I will admit that my image of Hermione in my mind is slowly morphing into how Hermione was portrayed in POA. I know many have ranted on about Hermione in this thread, but it's something we all have in common. I think her booksmarts is portrayed fairly good but it's her attitude in general. Like I know Harry Potter is more moderanized (sp?) than is should be and Emma was so happy when she finally got Hermione into jeans, but that's just not Hermione. Hermione doesn't wear jeans from what I know. And I've noticed ever since Prisoner of Azkaban came out, I've seen a lot of fanfics where Hermione is wearing 'a little mascara and blush.' I'm sorry, I just dont see Hermione wearing any makeup.
And then there's Ron. I find it kind of ironic how the script writers gave almost all of his lines to Hermione and giving him pathetic lines which he wouldn't even say. Out of all the trio, however, I think Ron is portrayed the best. Even though he's like the underdog out of them all. Hermione ... see above, and Harry ... mm, I just dont see Harry like that when I read the books. I honestly dont know what it is, but something about Harry in the movies irkes me.
If I had to pick one character out of all of the movies who portrayed their character the best, I would say Richard Harris as Dumbledore 100%. He had the gentle side, the glint in the eye, in the first two films, and while Michael Gambon is decent, he's just too hyper to be a Dumbledore. Like in Prisoner of Azkaban, he was running up the stairs quite fast. I think Michael Gambon will make a good Dumbledore, somewhat, in Half-Blood Prince. You know, for the whole Horcrux hunt thing. But otherwise, Richard Harris is a true Dumbledore.
Now to fanfiction. I probably 2nd x 100 to say that most authors have the mistake of portraying their characters as they see in the movie. Draco is suddenly this hot shot, and yes I'll admit he is rather, rather good looking, but the Draco I envision in my mind is pale and looks like that really white guy in the Da Vince Code. Dont ask. Kinda, sorta, anyway.
And that's the shortened version. I can't remember what else I had.