According to The Movie Blog Superman producer Christopher Nolan will give Brandon Routh a screentest. Routh played the titular character in Bryan Singer's Superman Returns.
I like how they are going for a different Clark Kent and not the bumbling buffoon of the Donner/Singer iteration. That makes me confident that this version of Superman will be decidedly different than what we've seen before.
Nolan has acknowledged that Routh certainly looks the part, and will offer him a screentest. In discussing the prospect of casting him, he is worried about the general audience thinking the reboot has anything to with Superman Returns. There will be a difference in how they approach the characterization as well. Singer for example, kept Clark Kent similar to the Donner interpretation. Nolan wants to try something different and offer Clark up as the new “talent” and will be more competition than an undercover hero. That is right Byrnes fans, gone is the bumbling Mr. Kent.
I like how they are going for a different Clark Kent and not the bumbling buffoon of the Donner/Singer iteration. That makes me confident that this version of Superman will be decidedly different than what we've seen before.