Schloß der Vampire

House of Dark Shadows is a 1970 American feature-length horror film directed by Dan Curtis, based on his Dark Shadows television series (ABC, 1966–1971). In this film expansion, vampire Barnabas Collins (Jonathan Frid) searches for a cure for vampirism so he can marry a woman who resembles his long-lost fiancée Josette (Kathryn Leigh Scott).

Filming took place at Lyndhurst Estate in Tarrytown, New York, with additional footage at nearby Sleepy Hollow Cemetery. Curtis followed this film one year later with Night of Dark Shadows, another expansion of the Shadows franchise, dealing with the witch Angelique.