MMTH,

I did a little browsing around and it seems some sources mistakenly referred to the upcoming Conformist DVD as extended rather than special edition. According to IMDB, there's a cut that is 5 minutes longer. I suspect that the extended notion comes from the 5-hour cut DVD of Bertolucci's other masterpiece "1900" to be released on the same day (shot once again by the master Storaro).