My thought hit my head. At the filming of The Hobbit, everyone complained about the overly clear image (48 frames per second), saying that it looks too real. You can use up to 60 frames per second.
And if this effect of “reality” is used for the shooting of the film about the Amber Kingdom. "The Chronicles of Amber" of Roger Iron. The same it.
24 frames per second - a dull shadow (our world for example)
48 frames per second - the kingdom itself
60 frames per second is the primary path where the sense of reality is stumbling.

Here would be some new Peter Jackson to find, who will make these films with love and skill. There are 10 books plus 3 prequels. Money would be earned inexorably.