Here's the trailer:
I especially appreciated the big faceful of armpit hair at 1:16. I remember that in the early days of computer animation hair was hard to do, so the characters tended to be insects or plastic toys. There's been so much progress since then, not that I've set foot into a theater showing a computer animation since I walked out of "Antz" because the closeup faces were making me ill.
The human faces in "Mr. Peabody & Sherman" are actually a lot like those insect faces that made me ill, except that they nail those smart-ass-kid expressions that — since the 1980s — TV has been teaching our children to make.
Of course, Mr. Peabody is a dog, so the hairs will have been minutely attended to. If I were to see this film — which I wouldn't, because I almost never go to the movies and I have a physical aversion to computer animation — I would be continually distracted by the constant minute wiggling and shimmering of the hairs as they — this is how I would think of it — show off that they can do hair.
ADDED: Here's how the old TV cartoon looked. It was "crude" in the sense of its being done quickly and cheaply, but the drawing is actually quite vivid and charming. I love drawn cartoons, and I admire cheapness and quickness when the result is good, so I'm a bit sorry for using the word "crudely" in the post title. [AND: The particular "Mr. Peabody" cartoon I happened to find to link to there, which I just watched, has an Indian character of the smoke-um-peace-pipe sort that you'd never see today, and more strangely, there seems to be a swastika on one of the teepees.]