It opens this weekend (July 20) in Japan, this will probably see the same limited distribution stateside until a wider blu ray release gets out.
Earlier released footage:
So far this is shaping up to be the strangest production Miyazaki has done in a while. The protagonist is seen as a young man, and Hideaki Anno is in his 50s. The mechanical sound effects are being done Michael Winslow style. The soundtrack is mono. The backdrop is purely historical. Jirō Horikoshi is the man who designed Japan's fighter plane used in Pearl Harbor and kamikaze attacks. But I haven't missed a Miyazaki film yet so I won't be missing this one.
Still not stranger than Porco Rosso. Nothing will ever be stranger than that. Only Ghibli movie I was never able to sit through all the way because of how much I disliked it.
I hope this movie isn't as much of a yawn-fest as Arietty was. I know that one wasn't directed by The Man Himself, and it wasn't a bad movie, it was just lacking in many areas. Ponyo wasn't even quite as good as Miyazaki's past movies. And how many times has he officially retired, now? Three? Oh Japan.
If I had to choose one of the two, I'd actually be looking forward more to Takahata's Kaguyahime adaptation. That man does a great job with his movies. I might like them even better than Miyazaki's, actually.