Warner Brothers has launched the official Superman Returns website. It's pretty nice, with lots of downloads, and really cool display system for all the Video Journals that document the ongoing production. Also announced today is that the teaser trailer for Superman Returns will be attached to Harry Potter and the Goblet of Fire which opens in theatres on November 18.
Here's on of the many cool buddy icons available in the downloads section. They've also got some nice wallpapers and promo photos.