Quick first suggestions: I had some trouble with the video sections, like in the Making of ESB section. Sometimes the videos would stop and go back to the main menu when they were finished, and sometimes they would just stop or get stuck, I couldn't tell which. Some kind of controls would be nice as well, backwards and forwards or at least a Pause function.
This is awesome so far. I will have more suggestions (and probably contributions) after I finish.
--SKot