There's some concept art behind the scenes images here: http://www.firstshowing.net/2007/03/07/incredible-art-of-spider-man-3-photos-of-venom-and-sandman/
http://badassdigest.com/2012/07/05/was-the-untold-story-cut-from-the-amazing-spider-man/ goes in to what was cut based on the stuff that was released in the trailers and marketing
article in norwegian on varg vikernes. just run it through google translate: http://www.dagbladet.no/2009/07/04/magasinet/innenriks/kriminalomsorg/kirkebrann/drapsdom/7051663/
And a new Daft Punk tour to go with it. http://www.movieline.com/2009/07/daft-punk-will-tour-in-support-of-tron-legacy-soundtrack-and-other-comic-con-revelations.php