Disney has released a trailer for the upcoming short film, Once Upon A Studio, that celebrates 100 years of Disney! The new short features 543 Disney characters, including Idina Menzel’s Elsa and Kristen Bell’s Anna. You can get a quick peek at them in the trailer above!

An all-star ensemble of beloved characters from Walt Disney Animation Studios come together in “Once Upon a Studio” for a joyful, entertaining and emotional reunion as they assemble for a spectacular group photo to mark Disney’s 100th anniversary. Featuring 543 Disney characters from more than 85 feature-length and short films, “Once Upon a Studio” welcomes heroes and villains, princes and princesses, sidekicks and sorcerers—in all-new hand-drawn and CG animation—to celebrate 10 decades of storytelling, artistry and technological achievements. Directed by Dan Abraham and Trent Correy and produced by Yvett Merino and Bradford Simonsen

The short film features new recordings from the original voice actors (like Idina), as well as archival footage from others. Once Upon A Studio premieres on ABC during The Wonderful World of Disney: Disney’s 100th Anniversary Celebration! on October 15 at 8/7c.. It will premiere theatrically on November 22 ahead of the new animated Disney film Wish.