'Kind Hearts and Coronets' is a 1949 British black comedy film. It features Dennis Price, Joan Greenwood, Valerie Hobson and Alec Guinness; Guinness plays nine characters. The plot is loosely based on the novel Israel Rank: The Autobiography of a Criminal (1907) by Roy Horniman. It concerns Louis D'Ascoyne Mazzini, the son of a woman disowned by her aristocratic family for marrying out of her social class. After her death Louis decides to take revenge on the family, and to take the dukedom, by murdering the eight people ahead of him in succession to the title.

Alec Guinness as nine members of the D'Ascoyne family: Ethelred, Lord Ascoyne, Reverend Lord Henry, General Lord Rufus, Admiral Lord Horatio, Young Ascoyne, Young Henry and Lady Agatha D'Ascoyne. He also plays the seventh duke in brief flashback sequences to his mother's youth.

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