Film location used in "The Wicker Man" (British Lion, 1973) starring Christopher Lee, Edward Woodward, Ingrid Pitt, Britt Ekland, Diane Cilento. Directed by Robert Hardy

"Whithorn Library, whose interiors and exteriors are seen in the film, doubled up as both Summerisle Library and the registrar's office." - http://www.wicker-man.com/news_august2006.php