The novel that started as a secondary creation of "Harry Potter" will be made into a movie, and the film company will acquire the rights for the largest amount in history.

The novel that started as a secondary creation of "Harry Potter" will be made into a movie, and the film company will acquire the rights for the largest amount in history.
There × reports that Legendary Pictures, which depicted the secret love relationship between Malfoy and Hermione, paid more than $3 million (about 440 million yen) to acquire the rights to make a film of the dark fantasy novel "Alchemised"....

The linked article is in Japanese.