It's fasinating how spoiler free it is, it was smart in the doc that Anthony did'nt say a thing about ep3, no clips no spoilers.
He does'nt tell you about the Sidious/Palpatine mystery (nice one

but he shouldn't had said that Senator Palpatine was a villian.
More of it would have been brilliant, here's some of the features in the discs:
- 20 min documentry - "Villians" presented by Anthony Daniels.
- Theatrical Trailer of Episode III - Revenge Of The Sith.
- Ep3 Web Doc - "Creating General Grievous".
- Ep3 Web Doc - "2 worlds, One Movie".
Overall both of them Heroes and Villians were great DVDs.