This documentary film aired on ABC on December 13, 2015. is the first to include interviews with several different historians, and Disney legends.
Narrated by Ginnifer Goodwin ("Snow White" in ABC's "One Upon a Time").

LINKS:
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Instagram -   / jakelovestoons  
Disney Strike Blog - https://babbittblog.com/

Documentary Interviewees include (in no particular order):

J.B. Kaufman - film historian
Richard Sherman - songwriter
Sarah Nilsen – film historian
Eric Goldberg – supervising animator
Mark Henn – supervising animator
John Canemaker – animator/historian
Maria Tartar – Harvard professor
Jack Zipes – Brothers Grimm expert
Byron Howard - Disney film directors
Chris Buck and Jennifer Lee – Disney film directors
Mary Walsh – managing director of Disney's animation research library
Alan Menkin – composer
Marge Champion – original model for Snow White
Rebecca Cline - director of the Disney Archives
Mindy Johnson - author/historian
Wilma Baker – Snow White cel painter
... and Jake S. Friedman – author/animation historian