Viggo Mortensen and Daniel Day-Lewis are said to be the frontrunners for the General Zod role. Jessica Biel, Olivia Wilde, Mary Elizabeth Winstead, and Rachel McAdams are supposedly the frontrunners for the Lois Lane role while Alice Eve and Rosamund Pike are up for the role of Ursa (though Rosamund Pike looks unlikely to take the role since she just signed on to star in "Wrath of the Titans", the sequel to "Clash of the Titans"). As I am sure you all know, anything can change and actors can even drop out of films (recent example, Alec Baldwin in "Men in Black III"). Still, the Superman reboot is looking promising so far.
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