You could have borrowed my Fritz Lang's Robin (Roddy McDowall) as Grayson
I've seen your new posts. You have thrown out no less than THREE films since yesterday.
You try to compete with me?
I've nothing to say about the Spike Lee one. Sorry.
The Hughes Superman, or rather
Superboy:
Cusack is good but I would like to replace the him with Ralph Macchio for a more akward (and whiny) appearance, lol
If it had come out 1985 instead, the scrawny Anthony Michael Hall will be a terrific cameo for teenage Barry Allen, or even Arthur Curry.

A clever cast example is Meg Foster as Faora, the way you included a pic of her as Evil-Lyn.
Dalton as Zod would be really really cool.
Having Bond actors for two kryptonian characters, was that something you had in mind?
You could also have used Maud Adams for Lara.
A David Lynch film that includes Superman feels out of place. He's solely a Batman kind of director, in my book. No godly aliens with superpowers, only dark knights
But Kyle as Clark/Superman is actually genious. He can both act akward and noble
Dislike your actor for Bruce though. He would suit Deathstroke or Bane much better. But go with whatever vision you want