Saw it a second time.
This time it wasn't stretched, but some bars appeared over the image during the previews just before the movie started. They were later physically removed (like really, you could tell someone removed the mask with his hands from the projector) right at the part where I arrived in the theater last time, when Astro disappears. And oh was the image sweet! It was like Blu-ray! No blurriness for once!
You can probably tell I hate theaters, but when (so rarely) done right, they kick ass.
Two things that the trailers helped me notice: as can be seen in , at 1:22, Astro's pants look as concrete as metal. I thought the animation may still be incomplete but now having seen the full image in theaters, it wasn't fixed. Also, remember the trailer when you see Astro in classic outfit flying towards us and punches the camera? He's flying through floors in a building at first, also in classic outfit. That flying up the building scene appears in the movie before he fights with the Peacekeeper, when he still should have his clothes on.
Maybe someone could contact Mr. Bowers to get this fixed for the home video release.
(Astro's friends are still ugly)