Tickets go on sale Friday, with a new family area and a late-night jazz tent.
Early reactions on social media have been overwhelmingly positive, with fans highlighting the soundtrack and a handful of memorable scenes.
Industry watchers say the success is another sign that audiences reward originality and strong word of mouth over big marketing budgets.
A follow-up has not been confirmed, but the creators hinted in interviews that there are more stories to tell in the same world.
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