December 21

==Theatrical releases==
===Shorts===
*1929 - Wild Waves
*1945 - Old Sequoia
*1984 - Frankenweenie (re-release)
*2006 - Lifted
*2007 - How to Hook Up Your Home Theater
===Films===
*1937 - Snow White and the Seven Dwarfs premieres at the Carthay Circle Theatre in Los Angeles, California.
*1979 - The Black Hole
*1984 - Pinocchio (re-release)
*1988 - Beaches (Touchstone Pictures)
*1999 - Fantasia 2000 premieres in London, England.
*2007 - National Treasure: Book of Secrets
*2029 - Avatar 4 (20th Century Studios)
==Television==
*1980 - Part 1 of "The Ghosts of Buxley Hall" premieres on NBC.
*1985 - Disney's Adventures of the Gummi Bears concludes it's first season on NBC with the episode "Light Makes Right".
*1989 - The Chip 'n Dale Rescue Rangers episode "Gadget Goes Hawaiian" premieres in syndication.
*1995 - The Gargoyles episode "M.I.A." premieres in syndication.
*1996 - The Jungle Cubs episode "Fool Me Once.../Trouble on the Waterfront" premieres on ABC.
*1998
**The Hercules episode "Hercules and the Prom" premieres in syndication.
**The Bear in the Big Blue House episode "I Gotta Be Me!" premieres on Playhouse Disney.
*2001 - The Even Stevens episode "Uncle Chuck" premieres on Disney Channel.
*2014 - The Binny and the Ghost episode "The Pesky Posts" premieres on Disney Channel Germany.
==Streaming==
*2018 - The complete second season of Runaways premieres on Hulu.
*2022
**The National Treasure: Edge of History episode "Graceland Gambit" premieres on Disney+.
**The Willow episode "Chapter V: Wildwood" premieres on Disney+.
==VHS & DVD releases==
*2004 - The Young Black Stallion, Where the Red Fern Grows and King Arthur
*2010 - The Secret Life of the American Teenager: Volume Five (ABC Family)
==DVD & Blu-ray releases==
*2010 - Step Up 3 (Touchstone Home Entertainment)
==People==
===Births===
*1910 - Marvin Davis † (master planner, art director, and scenic designer)
*1913 - Fred Joerger † (sculptor, model maker, set designer, and Imagineer)
*1914 - Eustace Lycett † (special effects artist)
*1922 - Paul Winchell † (actor, voice actor, comedian, humanitarian, inventor, and ventriloquist)
*1936 - Sharon Disney Lund † (philanthropist and adopted daughter of Walt and Lillian Disney)
*1937 - Jane Fonda (actress, voice actress, writer, political activist, former fashion model, and fitness guru)
*1948
**Samuel L. Jackson (actor, voice actor, comedian, and film producer)
**Barry Gordon (actor, voice actor, television host, television producer, singer, and president of the Screen Actors Guild)
*1949 - Michael Horse (film and television actor, jeweler, and painter)
*1950 - Jeffrey Katzenberg (film producer and former chairman of Walt Disney Studios)
*1955 - Jane Kaczmarek (actress and voice actress)
*1965 - Andy Dick (actor and comedian)
*1966 - Kiefer Sutherland (actor, voice actor, producer, and director)
*1969 - Julie Delpy (actress, singer-songwriter, film director, and screenwriter)
*1970 - Jamie Theakston (presenter, producer, actor, and voice actor)
===Deaths===
*1950 - Earl Duvall (artist and animator)
*1991 - Leota Toombs (Imagineer)
es:21 de Diciembre
pt-br:21 de Dezembro
Category:Days in Disney history