Bleedingcool.com recently had a nice chat with VFX Supervisor Joe Letteri. His company is helping bring the magic to the screen in Man of Steel, yet he implies the effects are secondary to the characters:
If you look at what Zack [Snyder] has done you’ll see that they’ve abandoned a lot of the pretense that was in the comics and asked “Can we still make this work?”
They’re sticking to realism as much as possible. Fantastic elements are still there but a lot of it that been trimmed back to make it feel as though this actually happened.
Read the rest of what Letteri had to say. We already know Henry will make this Man of Steel unique by bringing his talent to the role. Go Henry!