That's really unnecessary...
I am a bit disappointed with the special features. 'The Psychology of The Dark Knight' and the Gotham Tonight episodes are a fun watch but I've already seen them online, months ago. They were shown as part of the marketing in the run up to the film's release.
I wanted a comprehensive 'making of' documentary and a commentary from Nolan, at least.
Oh well. There's always the Special Edition, I suppose...