GOF was my least favorite movie to watch, but only because of how some of the characters were handled. I don't mind changes in film from the source material, but what I DO mind is when you don't keep to the spirit of the book or certain characters in the book. Newell seemed to favor very over the top performances from his actors, and in some cases it worked (the Harry/Moaning Mertyle scene is hilarious) in others it was god awful, Dumbledore being the prime example. We suddenly have an antsy fidgety Dumbledore that flinches at the petty light shows of the visiting schools, and sprints across a room and nearly shakes Harry's head off while asking him "DID YA PUT YEH NAME IN DA GOBLET!!!?" That was not at all the persona of the calm, collected, most powerful wizard in the world that he was presented as, and it bugged the living hell out of me. There are many other examples I could give of what I thought was OTT acting, but in general that made me dislike that film the most.
GOF may have been a better film than it worked as an adaption of the book.
Some details were just really good, like the world cup scenes in beginning. Most things regarding the triwizard tournament are great, especially the dragons. And the resurrection of Voldemort/death of Cedric and its aftermath is amazing, and not only on the emotional level.
POA is still best though. It was the first time the three actors really
were their characters, and not just Daniel/Emma/Rupert playing them. At least that's the feeling I get from watching it.
Not matter how scary huge spiders or a giant snake are, the dementors are more of a threat. The same goes for Lupin's werewolf shape. This has a lot to do with their visual appearances, but also because of Harry's emotional connection to both of the creatures.
The robes were gone in POA, in favour of real clothes, Hogwarts didn't feel like a staged set anymore.
All this together give the film a certain realistic edge.
But GOF felt more
real than previous films. It was as the characters were in 100% real danger for the first time. I think it's because they hadn't encountered so much life-threatening situations before as they did in GOF. They even had to deal with the loss of a school mate.
GOF could be described as a film about teens who have had dreams about fairy tale worlds (still dark, though) were they had been heroes, but now they wake up to face an even harsher reality.
POA could perhaps be seen as a prologue to GOF. It takes place just when the characters are "about to wake up", and the dementors are a symbol of sleep paralysis.
POA and GOF should be linked together when it comes to altering the fantasy element in Harry Potter and point out that the adventures take place in our world and not an alternate dimension where the fun and light could co-exist with nightmare creatures. POA is the preparation and deal a lot with emotions/feelings and fears, GOF the real thing, the dangers are external. But again, POA is still the superior film
Later films went of course even further with the intruduction of the real world. HBP had a subway scene with Harry, and in DH vol 1 the trio visit a muggle café.
To not go too off-topic there, I have to include Fantastic Beasts in the discussion.
I have to admit that I wonder how the filmmakers will approach the story of Newt Scamander. Will it begin just as Harry Potter did, and then slowly turning darker and more realistic for each film? Or will all the parts of the trilogy be much the same?
What would you guys prefer?