It's scoring a remarkable 96% freshness on Rotten Tomatoes. IMDB's average user rating is 8.8 stars out of 10.
IMDB ranks Ratatouille as the #40 rated film of all time. Their "adjusted" rating is 8.5 rather than the straight 8.8. (IMDB tweaks their ranking algorithms so their numbers don't really match. I wish they'd just settle on one rating system.)
Feel like cooking up something from the movie? Here's a recipe! I won't spoil where this is in the movie, but I'm sure you chefs will recognize it quickly enough. The associated NY Times article also contains minor spoilers. (Marko, I'm doin' my best!)
Maybe you just want some cute icons?
Special thanks to madiushrat for some of these links.