Since I'm not familiar with a 'Gerald's Game Disney short story', it could potentially be about Gerald's journey in a magical Disney - like world. Maybe Gerald has to overcome challenges, meet new friends or face some sort of conflict. It could also be a story that teaches a moral lesson, like many Disney stories do, perhaps about friendship, courage or perseverance. But again, this is all speculation without more details.
In 'gerald's game short story', a woman is handcuffed to a bed during a sex game gone wrong when her husband has a heart attack and dies. She then has to find a way to survive and escape the situation while dealing with her own psychological traumas and the menacing presence in the room.
The main characters are the woman and her husband Gerald. The woman is the central character as she is the one who has to endure and fight for her survival after Gerald's death.
As I'm not certain about this specific short story, it's difficult to say who the main characters are. But if we assume a typical Disney - like story, there might be Gerald as the central character. There could also be a sidekick or a mentor figure, perhaps an animal or an older, wiser character to guide Gerald through his adventure.
Yes, Gerald's Game is based on a true story. Stephen King was inspired by various real - life elements and his own creative imagination to write this gripping novel.