I'm quite certain it isn't. The movie 'Now You See Me' is filled with fictional elements like impossible magic tricks and a complex plot of revenge and exposure in the world of magic shows, which doesn't seem to be related to any true story by Emma Haughton.
In a more light - hearted scenario, Emily could be a mischievous pet, like a cat or a dog that has run away, and the 'catching Emily' part is all about the family trying to bring their beloved pet back home.
In the 'Emily Rose Story', Emily Rose is a girl who has to endure the horror of being possessed. She is the one that everyone in the story is either trying to help or figure out what's wrong with. Her experiences are what drive the whole story forward.
As far as I know, there is no relation at all. 'Now You See Me' creates a world of magic and mystery for entertainment purposes, while Emma Haughton's true story, whatever it may be, has not been linked to this movie in any way. The movie focuses on things like illusion, deception, and a battle of wits, which are likely created from the filmmakers' imagination.
Miss Emily Grierson herself can be seen as a symbol of the dying Old South. Her decaying mansion represents the decay of the old social order. The rose in the title can be a symbol of love or pity for her. She was once a lady of high standing but as time passed, she was left behind, just like the Old South was being replaced by the new era. And her actions, which seem so out of place in the new society, are like the last gasps of the old traditions.
I don't have enough information to determine exactly who Emily Hanford is in this context. She could be a journalist, an author, or someone involved in the media industry.
A simple fanfic could be that Emily is pregnant and she and Richard take a trip to a quiet countryside place to relax and enjoy the early days of her pregnancy away from the hustle and bustle of their normal life.
Miss Emily in 'A Rose for Emily' is a complex character. She is a symbol of the old South's traditions and decline. She was raised in a certain social environment which made her have a sense of superiority at first. However, as time passed and the South changed, she became a bit of an outcast. Her relationship with Homer Barron was also quite strange. It seemed she was desperate to hold on to something, whether it was love or just a way to defy the changing world around her.
Emily Perkins is the main character in this story. She's likely to be a young woman who is in a situation similar to Cinderella. Maybe she has some sort of difficult family situation or is in a lower social position compared to others around her.
It is a very complex and poignant story. The main character, Emily, is a symbol of the old South. Her life is full of isolation and mystery. The use of the rose in the title can be seen as a symbol of love, pity or a tribute to her in a way.