From Witold Rybczynski's Blog — Films Starring Architecture

... Roman Polanski’s 1966 film Cul-de-Sac. Lionel Stander and Donald Pleasance are first-rate, but they share star billing with Lindisfarne Castle, which is the location of this one-setting film. Lindisfarne is a sixteenth-century castle that was restored and converted into a country retreat by Sir Edwin Lutyens, whose austere architecture contributes greatly to the tense atmosphere of the film. It reminded me how few movie director’s have exploited outstanding architecture.

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