I watched all the extras on the Dracula blu / dvd combo last night.
It's all very comprehensive, looking at the making of the film, the restoration and the discovery and integration of the legendary Japanese additional sequences.
The main documentary actually features knowledgeable folk like Marcus Hearn, Jonathan Rigby, Kim Newman, Jimmy Sangster and Mark Gatiss (None of your Emily Booth's and Caroline Munro's here folks), but best of all is the appraisal of the film from Sir Christopher Frayling who talks for a good half hour.
Incidentally Frayling's book
Nightmare The Birth of Horror which accompanied a tv series is one of my favourite horror books.
It's going used for £1.50 if anyone's interested. (Or new for £66)
http://www.amazon.co.uk/Nightmare-Bi...rayling+horror