Above all Ice Age is a marvel of computer generated animation. The rendering of the bleak ice and snow is truly impressive, too bad the story doesn’t hold up as well. The best bit of business is a running gag with a small cartoony animal trying desperately to store an acorn in his desolate glacial environment. The rest of the film seems to be trying too hard to capture the zany fun of Shrek, or the spark of last year’s Monster’s, Inc, but lacklustre writing and predictable situations cast a chill over the whole thing. John Leguizamo’s voicing of Sid the Sloth is very good, although Ray Romano as Manfred the Mammoth is a monotone bore.