Jet Bin Fever I've been to Mitaka and seen the Ghibli museum. It was by far one of the absolutely best things I did while in Japan. When I went they were screening a different short that was sort of like the Little Prince, with this environmental message where this kid grew tiny planets from seeds. I can't remember the details because this was about 7 years ago. Still, I remember enjoying everything there a whole lot. I only wish I had a child so they could play on the Nekobasu and throw stuffed makurokurosuke at the other kids.
The whole place seems to be really focused on keeping things under wraps so that when you do have a chance to go, everything will seem fresh. I didn't get the sense that they were doing it to entice people in to going, more that they wanted to make sure that when you went you had a certain experience. I wanted to see the other shorts, but I don't like seeing this stuff online either.
Loved this place, would also want to go back and do the whole thing over.