Sanderson Says Second Mistborn Script Is Half Done
The author is balancing the screenplay with several novels, he said in a YouTube update on his adaptation of the fantasy series.
Brandon Sanderson said the second version of his screenplay for a Mistborn film is 50% complete, according to screenrant.com. The author shared the update in a YouTube video.
Sanderson said he had done good work on the draft the previous week and that he is pleased with the progress. He is writing the screenplay while also working on several novels.
The screenplay is a separate step from the screen rights. In January 2026, Apple TV announced it had acquired the rights to Sanderson's Cosmere universe, with Mistborn in development as a film and Stormlight Archive as a TV series.
Five months before this update, Sanderson revealed he had finished the first version of the Mistborn screenplay. No release date or casting has been announced for the film.
Quick answers
How far along is Brandon Sanderson's Mistborn screenplay?
Sanderson said the second draft is 50% complete.
Who is developing Mistborn as a film?
Apple TV announced in January 2026 that it acquired the rights to Sanderson's Cosmere universe and is developing Mistborn as a film.
Is there a release date for the Mistborn film?
No release date has been announced.