Heart Made of Black is the upcoming movie adaptation of the book Caraval by Stephanie Garber.
On July 26th, 2015 Twentieth Century Fox bought the movie rights to the “Hearts Made of Black” book, later renamed Caraval. Set to produce the project was Pouya Shahbazian, the producer of the Divergent film.[1]
In 2017, Stephanie said that 20th Century Fox had picked up the film option for Caraval, so the movie was still a possibility.[2]