'I Have Made Very Good Progress' — Brandon Sanderson Says He's 10% Done With the Mistborn Screenplay

'I Have Made Very Good Progress' — Brandon Sanderson Says He's 10% Done With the Mistborn Screenplay Southeast Asia Home Amazon Deals Pro-tips by Codashop PC PS4 Xbox One Nintendo Mobile Entertainment EsportsMoreSearch Home More About IGN SEAContactAdvertisePressUser AgreementPrivacy PolicyCookie PolicyRSSIGN Southeast Asia is operated under license by Media Prima Digital Sdn Bhd (199901014126) Change Region United States United Kingdom Australia Africa Adria Serbian/Croatian Adria Slovenian Benelux / Dutch Brazil China / 中国 Czechia / Slovakia France Germany Greece / Ελλάδα Hungary India Israel Italy / Italia Japan / 日本 Korea / 한국 Latin America Middle East – English Middle East – الأوسطالشرق Nordic Poland Portugal Southeast Asia Spain / España Turkey / Türkiye world.ign.com Register / Login Register / Login Login Register Apple TV Plus 'I Have Made Very Good Progress' — Brandon Sanderson Says He's 10% Done With the Mistborn Screenplay Mistborn is coming along nicely. This post might contain affiliation links. If you buy something through this post, the publisher may get a share of the sale. By Jacob Kienlen  Updated: Feb. 18, 2026, 3:22 a.m. Related reads:MapleStorySEA Celebrates 20th Anniversary With Massive Summer Updates It’s only been a few weeks since it was announced that Brandon Sanderson’s Cosmere universe would be coming to Apple TV, but progress is already being made. Sanderson took to his YouTube channel today after missing his usual update last week.More like thisOpen Back Headphones: A Sound Experience Like No OtherHe mentioned a minor shoulder surgery was to blame for missing last week’s update, but that it hasn’t slowed down his work on the Mistborn screenplay. “I bet you’re waiting to hear how the Mistborn screenplay is going, and it is at 10%. So, I have made very good progress.”Like all of his ongoing projects, you can track progress on the Mistborn screenplay directly on his website where he has progress bars for everything he’s working on right now. He last gave an update about the screenplay two weeks ago, saying he was only 2% done, so it would seem like he is moving rather quickly.Sanderson also addressed the cancellation of his livestream following the news breaking about the Apple TV deal, saying “I got up that day for the livestream and got texts from the publishing team that said there’s like a WGA or something and I’m like, ‘Okay, let’s not talk about me in Hollywood working on a screenplay.'” He had taken to the Cosmere subreddit shortly after the original announcement saying he would be doing a livestream that Friday to talk more about the upcoming adaptations, so the cancellation was a surprise for fans.He went on to say that he’s not in the Writers Guild of America (WGA) yet, but mentioned that he wouldn’t write the screenplay if the WGA were on strike out of solidarity. He also mentioned that he does still plan on doing another livestream at some point, but didn’t mention a specific date for when to expect that.Sanderson’s progress and frequent updates about the screenplay are a welcome sight for fans worried about it affecting his other work, especially upcoming Cosmere books. He has mentioned a couple of times that while the Mistborn screenplay and work on the Stormlight Archive series will impact his schedule, he doesn’t think it will impact his plans for the books too much.Jacob Kienlen is a Senior Audience Development Strategist and Writer for IGN. Born and raised in Portland, Oregon, he has considered the Northwest his home for his entire life. With a bachelor’s degree in communication and over 8 years of professional writing experience, his expertise is spread across a variety of different pop culture topics — from TV series to indie games and books. Related reads:Brandon Sanderson Gives First Update on Apple TV’s Mistborn Movie, Confirms He’ll Be Co-Showrunner for the Stormlight Archive Series This post might contain affiliation links. If you buy something through this post, the publisher may get a share of the sale. In This Article