Millie Bobby Brown was offered a leading role in the upcoming C.S. Lewis adaptation, Chronicles of Narnia: The Silver Chair. With more than seven years having now passed since the last live-action Narnia film, The Voyage of the Dawn Treader, was released in theaters, The Silver Chair will double as both a revival of the franchise and a reboot of the series - with Joe Johnston (Captain America: The First Avenger) calling the shots.
The Silver Chair, which is being adapted for the big screen by Oscar-nominated screenwriter David Magee (Life of Pi), is chronologically the sixth Narnia novel (as well as the fourth one published by Lewis) and follows Eustace Scrubb - the protagonist of The Voyage of the Dawn Treader - and his schoolmate Jill Pole on an adventure to Narnia, to find the now-elderly King Caspian's missing heir Prince Rillian. Brown, who of course is best known for playing Eleven in the Netflix series Stranger Things, would play the role of Jill, were she to sign on for the project.
While THS is reporting that Brown has been offered the female lead role in The Silver Chair, the site hasn't been able to confirm whether she already passed on the project or is actively considering the offer. Brown's future availability for Chronicles of Narnia will also depend on the production timeline for the now-confirmed Stranger Things season 3, so that's another factor to be taken into consideration here.
Brown has quickly established herself as being a compelling and likable screen presence thanks to her Stranger Things role as Eleven - a role that demonstrates Brown's ability to handle everything from intense violence onscreen to comedic timing and emotional vulnerability. The previous three Chronicles of Narnia movies featured now up and coming actors who were unknown at the time of their casting (see Will Poulter, Ben Barnes, and so forth) in their lead roles, making Brown's potential casting in The Silver Chair a change of pace for the series.
The Silver Chair is meant to revive Chronicles of Narnia as a viable film property and not just serve as a one-off fantasy adventure, so that could explain why the film's producers are looking at bigger names (like Brown) to play the young protagonists here than the previous installments did - to help from a marketing perspective. In that respect, The Silver Chair would benefit from bringing Brown onboard; both creatively and box office-wise.
For the time being, however, Brown is not attached to The Silver Chair and only has one movie tentpole role in her future - her role in the upcoming Godzilla: King of the Monsters. Expect an update on the situation either way, in the foreseeable future.
Chronicles of Narnia: The Silver Chair doesn't have an official theatrical release date yet.