From Wikipedia, the free encyclopedia. Bart the Bear (19 January 1977 - 10 May 2000) was an Alaskan Kodiak Bear that appeared in several Hollywood films. Previously, Bart's mother appeared in the films Grizzly and Day of the Animals. Animal trainers Doug Seus and Lynne Seus of Wasatch Rocky Mountain Wildlife, Inc., in Heber City, Utah, trained Bart.[2] He grew to 9' 6" (2.90 m) tall and weighed 1,500 pounds (680 kg) throughout his life as an adult. John Candy, Dan Aykroyd, Annette Bening, Ethan Hawke, Steven Seagal, Gregory Peck, Tchéky Karyo, Brad Pitt, Alec Baldwin and Anthony Hopkins all appeared in films opposite the bear, the latter even twice. In 2000, Bart died of cancer at the age of 23 while filming the television documentary Growing Up Grizzly (2001). Brad Pitt, who appeared in Legends of the Fall with Bart, presented the piece. Description above from the Wikipedia article Bart the Bear, licensed under CC-BY-SA, full list of contributors on Wikipedia.