I know there was an older thread for this, but I was unable to locate it. Here's a few clips from Bryan Singer's journal of his appearance at ComiCon, and also a few scenes from the new movie. A little long on the con piece, but the scenes that are in this look pretty good. The first time I saw him in Clark Kent getup I thought he definitely looks like Christopher Reeve (IMO). It's the Bryan's Journal #20 link on the side of the page.