Among the many animation treasures celebrated here are the never-before-released 'Hell's Bells' and the original unedited 'Mother Goose Goes Hollywood', plus the Academy Award winning 'Three Orphan Kittens' (Best Cartoon, 1935). Enriching the collection even further are several options commentaries by some of the world's foremost animation and film music experts, who also take part in a lively conversation about the series that let Walt Disney push the envelope of animation art to unimaginable flights of fantasy.

• Walt Disney Pictures