I wanted to post the Giant Cats Devouring Fat Man scene from Taxidermie, but couldn't find it online.
I believe that that would be the most appropriate Poetv clip in existence.
Every CGI cat replaces at least 1 real world cat who would have hated being forced to work, so CGI means happier kitties IRL so CGI kitties make me happy
The thing is, the movie apparently has something like 60 CGI shots and it's just that this particular one didn't work out so well. The effects folks did a much smoother job with some of the other scenes, such as the scratch on Oskar's face, Eli climbing the tree, or any number of cases you'd never even think were effects-based. For example some (most?) of the scenes on the jungle gym were apparently shot in a refrigerated blue room and composited with the courtyard.
One of the effects guys (not the cat scene) had some posts on IMDb about it, though it looks like he pulled them. As I recall, his point of view was that if you could tell it was a CGI scene, he screwed up.