Excellent computer-generated animated feature that makes a case for one of the finest films of 2002. It is the frozen era and prehistoric animals try to find their way to land that is warmer and drier. An early group of human hunters become the hunted themselves as a group of sabertooth tigers begin to plot revenge. As an attack occurs, a small infant child is taken out of harm's way. Enter a kind wooly mammoth (voiced by the priceless Ray Romano) and a silly sloth (voiced by John Leguizamo) who find the young child and decide to return it to the humans. It appears that a sabertooth tiger (Denis Leary) is helping the duo, but his motives are devious as he is trying to lead them all into a trap of other sabertooth tigers. The film is another great animated piece of film-making that has important messages for the youngsters and is also highly entertaining for all audiences. 5 stars out of 5.