from the CGS article:
If you were a fan of the original Dark Shadows TV soap opera from the late 1960's, you were probably smacking your bloody lips over news of the film, especially one staring Johnny Depp and directed by Tim Burton. Who else could take such a wicked little tale and make it better? For starters, MPC (Moving Picture Company) who completed 340 shots from their two locations in Vancouver, under VFX Supervisor Erik Nordby, and London, under VFX Supervisors Arundi Asregadoo, both under the guidance of VFX Supervisor Angus Bickerton.
The storyline takes place in Collinsport, Maine, where the once wealthy and influential 18th century playboy Barnabas Collins (Johnny Depp) plays with the emotions of the wrong woman. That woman is witch Angelique Brouchard (Eva Green) who takes her revenge by casting a spell over Barnabas, turning him into a vampire and burying him alive where he remains until he is released from the casket where he has lain imprisoned for two centuries. The year is 1972 and obviously much has changed, including the stability of his estate, Collinwood Manor, and the descendants who inhabit it.