1974 film by Don Siegel
The Black Windmill is a 1974 spy thriller film directed and produced by Don Siegel, and starring Michael Caine, Donald Pleasence, Delphine Seyrig, Clive Revill, John Vernon, Joss Ackland and Janet Suzman. Caine portrays a British intelligence officer whose son is kidnapped and held for ransom. The screenplay is based on Clive Egleton's 1973 novel Seven Days to a Killing.
The film was a British and American co-production, distributed by Universal Pictures (internationally from Cinema International Corporation). It premiered in New York City on May 17, 1974, and received mixed reviews from critics.
Plot summary adapted from Wikipedia, licensed under CC BY-SA 4.0.