If Cavill is a true fan and wants to tell the Witcher story in canon, he should just get with A.S. & investors and tell the story the way they envision. Even if it’s just the short stories. Or even make a movie for Season of Storm or a 1 season streaming of SoS. The budget doesn’t have to be big. Look at how good the fan fiction effort was with Alzur’s Legacy. They did that film on a budget of less than $10,000 usd and it’s pretty damn good and directly in line with Witcher canon. (It’s in Polish with English subtitles). Plus the actress that plays Triss is a babe!