If you haven't gotten a chance, pick up this fascinating read. It dispells a lot of myths and controversies surrounding the film. As many have said before, Gary D. Rhodes takes a scholar's pen to researching and unearthing long forgotten information; shedding new light on Tod Browning and the making of DRACULA. Worth every penny and was released 84 years ago this very weekend.
http://www.amazon.com/Tod-Brownings-Dracula-Gary-Rhodes/dp/0956683452/
or
http://www.amazon.co.uk/Tod-Brownings-Dracula-Gary-Rhodes/dp/0956683452