Overview
Halloweentown is a series of four fantasy films released as Disney Channel Original Movies: Halloweentown (1998), Halloweentown II: Kalabar's Revenge (2001), Halloweentown High (2004), and Return to Halloweentown (2006).
Background
Halloweentown proposes that fantasy beings such as warlocks, vampires, werewolves, mummies, ghosts, trolls, ogres, zombies, pumpkin heads (a race of people with jack-o'-lanterns for heads), skeletons, goblins, and humanoids with varying numbers of heads, limbs, and sensory organs are real, but have separated themselves from Earth's history to escape humans' fear and persecution. These characters created their own community, "Halloweentown", a thousand years ago in an alternate universe.
Travel between Halloweentown and the ordinary, historical world (which Halloweentown residents call "The Mortal World") is only possible with magical aid, and only at regulated times (on Halloween), until the portal seals at midnight. In the second film, they permanently open the portal between the Mortal World and Halloweentown, and events of the third film breach the gap even more.
It is stated that many of the traditions of Halloween in the Mortal World are parallels based on regular traditions in Halloweentown. An example of this is how mortals wear costumes that mimic the creatures of Halloweentown, and are often depicted as being more frightening than they are naturally. In Halloweentown, the residents dress up every day, and most are much friendlier than humans generally depict them.
From Wikipedia (CC BY-SA 4.0).