Cosmete can't be adapted into live actions. Guys, dropped it already
Stormlight Archive is specifically impossible. It's an alien planet, with a typically strange fauna and flora. Except by Shinovar it barely resembles earth, means almost every time they are outdoors they will need to be at a green screen (and sometimes even in doors, interacting with animals and spren)
If green screen is such an standard, why bother ? Just make an animation