I think what Yates needs to do in order to redeem the movies is somehow figure out a way to bridge the gap that has been made. One of the greatest things about the HP books, or any well-written series (whether it be a movie series or book series) is its ability to take multiple books/ episodes/ stories and make them in to one flowing piece of work by creating themes, ideas, characters, motifs, and concepts that are woven in and out throughout the entire series. I think the movies feel choppy and disjointed because they fail to do that.
The first two films flow together very nicely (which is logical because they have the same director and composer) the visual, audio, and sentimental components are consistant throughout both films. This, I believe, is why you so often hear people saying things to the effect of "The first two films were good but then they went down hill from there..." Through these first two films, the overall "feel" of what the Harry Potter world is like is established.
The third film comes complete with a new director who takes the film, visually, in another direction. The overall "feel" the first two films established is slightly corrupted, but the film is, musically, consistant with the first two films. In my opinion, John Williams use of
leitmotif was one of the few things that gelled the third and first two films together.
The fourth film, which has neither the same director nor composer as the first three films, is very disjointed from them, almost as if it was a movie from a different series. Those intrinsic themes (Hedwigs theme, A Window to the Past, Harry's Parents Theme, Hogwarts Theme etc.) that brought us back to the Harry Potter world and conjured up certain feelings and emotions (even if it was only subconsiously) were lost in the fourth film. Music, I believe, plays such a vital roll in a movie. Imagine if in "Return of the Jedi" the Imperial March theme was suddenly replaced with something else, or if Superman III had a new theme song, totally different from the previous, in Superman I and II....the movies just wouldn't be the same. Music triggers retrieval cues which causes us to feel things, even if you don't know it's happening (psych 101 rears its ugly head

). The loss of Williams as a composer, I think, was the the single biggest blow to the harmony of the films.
If they had used the same director throughout the movies, or even the same 2 or 3 directors, they would have been able to communicate what ideas, plots, concepts, character traits, etc. they wanted to bring out or concentrate on and in doing so continue them througout the movies. The way WB has chosen to do it, each director pushes his own agenda of what he wants to do with the characters and/or ideas and because of that we end up with things like...
- Two total differnt Dumbledores (character wise)
- Three different renditions of the Hogwarts landscape
- Two different professor flitwicks
- Inconsistantsies with what witches and wizards do and don't wear (Robes in the first two, sloppy clothes in the third, and Hogwarts hoddies and muggle clothes in the fourth)
- Characters that unexplicably dissapear before their time (Wood, Dooby, etc.)
- Characters that unexplicably show up for no reason (the big black kid in PoA, Nigel in GoF)
- An entrance to the Gryffindor common room that appears in a differnt location in different movies.
- etc..
These things on their own may not seem like that big of a deal, but when coupled together along with a change in composer which, in my opinoin, drastically changes the "feel" of the movies, the films are left choppy and disjointed, sharing little between them. With no fiber that survives throughout the movies tieing them together, viewers are left with nothing to cling on to, and instead of one story that slowly unfolds in seven parts (as the books do) they are left with 7 seperate stories that try (and fail) to stand on their own, and don't really flow together to make a single comprehensive story.
For us, Harry Potter fans who have read the books, we are able to put the missing pieces back into the puzzle and make sense of the jumble, but for others this isn't the case...I don't think I am the only one here who has had to explain to someone who has not read the books why something did or didn't happen.
So, I said all that to say this. I think if Yates wants to make a decent film what he needs to do is
1). Put what he artistically wants to do on the back burner and concentrate on the actual story that is there- not going off on wild tangeants that aren't in the books (like the chase scene) and are only going to add the the disjointedness of the films.
and
2). Concentrate on themes, ideas, concepts, and motifs that have already been established, elaborate upon them and see them through, rather than concentrating on new themes that will be left incomplete by the end of the movie and disregaurded by the next director.
I would suggest he moves the film back to the look and feel and overall ambience of the first three films, rather than focus on elaborating on the fourth film because, to me, the fourth film didn't even seem like it belonged with the the previous three.
The series (movie wise) needs to be brought back to its roots; that is the most important thing for Yates to do....in my opinoin