Legend's film rights have been sold to Lionsgate, with Twilight producers Wyck Godfrey and Marty Bowen to produce. In January 2013, MTV reported that Jonathan Levine, though initially attached as director, had dropped out of the film. Godfrey stated, "We have a fantastic script, and we had Jonathan Levine who directed Warm Bodies, but because he had just done a YA book, he’s kinda like, 'I’ve got to do something different.' So we’re in the process of putting a director on Legend. Whoever gets that is going to be excited because the world-building for that is a blast." Producers are in the process of attaching a new director to the film. That same month, it was reported that Andrew Barrer and Gabe Ferrari have completed the script.
In July 2018, it was announced that the film and television rights have been acquired by BCDF Pictures with Joseph Muszynski hired to write the script. Lu stated that she is happy with the current script as it stays true to the novel. Claude Dal Farra, Brice Dal Farra, and Brian Keady serve as producers from BCDF Pictures, while Irfaan Fredericks of Kalahari Film & Media will co-produce the project.
The film's release date has yet to be announced.
A graphic novel adaptation of Legend was published on April 25, 2015 by Penguin Group (USA) LLC. An adaptation of the second novel, Prodigy, was slated to be published on April 26, 2016. A third and final adaptation of Champion was released on April 25, 2017. The adaptations are written by Leigh Dragoon and illustrated by Caravan Studio.