This is a fantastic animated movie starring Denis Leary, John Leguizamo, and Ray Romano. Leary plays the Saber-Tooth Tiger Diego, Romano play the huge Wooly Mammoth, and Leguizamo plays the Prehistoric Sloth. All of these actors play these wonderful characters excellently! Each and every individual has a great personality and they look accurate and real. The animation is flawless! It crisp, clean, and clear! Just beautiful! Everything looks so realistic! The movie is hilarious as well. The bonus animated short called Scrat's Missing Adventure is a very funny treat! The music by David Newman is very good. If you are fan of the cast mentioned above and like the animated feature Dinosaur then I strongly recommend that you do what I did and buy this wonderful film today!