Once Upon a Halloween is a 2005 British direct-to-video animated fantasy film featuring the Evil Queen (from Snow White and the Seven Dwarfs) and Disney Villains.

While the scenes shown as flashbacks are from traditional animated films, the original scenes of the film featuring the Evil Queen with her cauldron were animated in CGI.

On the night before Halloween, the Evil Queen from Snow White and the Seven Dwarfs plans to conquer Halloween, and asks her cauldron to show several villains, to which one of them helps her in her plan, such as Peg Leg Pete from Mickey & Friends (in his role as Tiny Tom in Officer Duck), Ursula from The Little Mermaid, Captain Hook from Peter Pan, Yzma from The Emperor's New Groove, Professor Ratigan from The Great Mouse Detective, Alameda Slim from Home on the Range, and Judge Claude Frollo from The Hunchback of Notre Dame.

At the end however, the cauldron makes the Evil Queen disappear, foiling her plan to take over Halloween.

Archive footage voice cast include: This article about a Disney animated film of the 2000s is a stub.