3. Phantom Zone
In a film where General Zod is your primary villain, I think that the Phantom Zone should be presented in some way. The TV series
Smallville went so far as to show you what their version of the Phantom Zone looked like. It was more than just a crystallized glass prison. It was a dangerous and barren wasteland. Man of Steel has the chance to explore diverse places. Its been stated that Krypton will be shown heavily throughout the film. Why not show the prison where Zod and his followers are trapped? For example, why not show how Zod and his people escape? It could be an action packed sequence that reveals an intricate and fascinating set piece or CG scene that creates a whole new world showing the alien prison. The skys the limit.