This Ice Age--the third in the series--is well paced, and the addition of 3D visuals is fine. It's not clever like a Pixar joint, but I get the sense that it was supposed to be touching. (I might not be the best judge of such things--during the movie's birth scene, a small boy in the theater cried tenderly, and I found myself unaffected.) You don't have to have seen the first two Ice Age movies to follow this one, but if you're older than seven, you might need to see them in order to care. by Jane Carlen