For the sake of a more direct comparison, I took corresponding screenshots of the xxxHOLiC movie to the those found in the
Blu-rayDefinition.com review. Screenshots are 1280x720 png, I haven't resized them.
xxxHOLiC movie screenshot 1
xxxHOLiC movie screenshot 2
xxxHOLiC movie screenshot 3
xxxHOLiC movie screenshot 4
xxxHOLiC movie screenshot 5
xxxHOLiC movie screenshot 6
xxxHOLiC movie screenshot 7
The difference between screenshots from the upscaled blu-ray and from an HD broadcast rip is readily apparent. Looks like there's more EE in the blu-ray as well, so if you like that, you're all set.