This is a really good link for reference material (& not):
http://www.avsforum.com/avs-vb/showthread.php?t=1168342Lots of Blu-ray animation movies are good show-offs. Kung Fu Panda has some incredible earth-shaking bass. Toy Story III is really good. Tim Burton movies like Corpse Bride, Coraline ...
The Kill Bill movies are really good, as is Sin City (rough subject matter in these though). The Earth Nature series has beautiful images.
Also, check out the 1.78:1 or 1.85:1 aspect ratios to better utilize the full screen vs. 2.4:1 typical film wide screen versions.
So many of the Blu-ray releases suck out loud content/ story-wise. I'd rather watch a Criterion release lesser picture/ sound quality older movie than a lot of the junk they are cranking out right now. But that's me ...