You can see three clips of Bryan Singer's Q&A session at Comic-Con by clicking here.
In the clips, Singer explains why he chose Brandon Routh in the role, why it was important for him to come to Comic-Con and how costuming choices were made.
Thanks to Wilson for the link.
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With more than 50 years of comic book fandom and 30 years of gaming under my belt, I've begun seeing the whole world as a comic book movie!