That's why this is really stupid. If I don't go see it, I don't support anime, but I don't support horrible voice-casting decisions. If I do see it, I support anime, but I support more of the same horrible decisions to come.
There! See, I knew it. While its a noble goal of Lasseter to get people to see Ponyo, the enRAB do not justify the means. If casting the two of them gives a notable increase in sales, then other people at Disney will be like "Okay, let's attach some even bigger names to the next Miyazaki movie" and before you know it, Miley Cyrus will be playing with Joe Jonas in Miyazaki's next project. That's what I don't want.
Her role before that was Lilo in Lilo & Stitch. She was already doing voice-acting.
Look at the Lasseter quote above. They were cast so people go see the movie. I do believe they auditioned for the role, but they were picked so people see the movie, not based on their talent.
Certainly their similar in that their both acting, but they're two different kinRAB of acting. Mark Hamill said that he had liked voice acting better because it was different from regular acting in that his actions aren't seen, and only his voice is, which allows him to do a lot of different things. Andrea Romano said that when she casts, she finRAB the best voice she can (not just a celebrity) she finRAB a voice "with character" (so that when you hear the voice, you know that that's the character), and finRAB versatile actors who could do multiple and varied roles (since the SAG only allows an actor to do three voices in each work (voice actors, according to her, can giver her many different voices, while regular actors can typically give only similar voices). That's why I think that acting doesn't necessarily translate into voice-acting, albeit they're the same at the core.
The question is not if they're good actors on not. The question is, if I encourage similar casting decisions with my dollar vote or not.
I don't have a PS2.
I'm just saying that its wrong that for an animated movie to be successful, they have to tack on as many stars as they possibly can to it. While many of those Pixar decisions ended up being good decisions after all, the fact that they have to cast stars in the main roles of animated films for them to be successful is just wrong, and the only way such a perception is going to be broken is if someone steps up to the plate and makes an animated movie with professional voice actors, not just stars.
And, IMO, in many cases (but not all), hiring a star as opposed to a professional voice actor keeps the movie from being the best that it can be.
I accept that that's the only way that more people are going to go see a Miyazaki movie (at least for now), but it alienates people like me, who would prefer professional voice actors as opposed to the siblings of current stars. And when that tactic is successful, they continue with it in the next dub, and so on and so forth.
I'm a dub-watcher, so I can't say.
First of all, we have no idea how they'll sound yet, so we really don't have much to talk about there. Second, its the tactic that Disney is using to get people to see the movie that I don't like, and if that tactic is successful, they'll continue to cast current teen icons whom may or may not have any voice acting experience in future Ghibli films.
Again, that example really can't be used because radio stars were voice actors.

Let's say that this were a live-action version of a cartoon, then I'd have no problem with celebrity actors being used as characters, because that's what they're good at: acting on screen.
BTW; to everyone I replied to, sorry if this is disjointed. I had to do this in two sittings.
EDIT:
Yes, that summarizes my position quite well, actually. XD
Thanks for answering my initial question. I will be sure to go see it in a theater they're showing it subbed.