Kind Hearts and Coronets
All the options are Ealing Studios productions, however "The Lavender Hill Mob" was released in 1951, "Shaun of the Dead" in 2004, "St Trinian's", one of the long-running St Trinian's series, in 2007. "Kind Hearts and Coronets" stars Dennis Price as the son of a woman disowned by her aristocratic family for marrying out of her social class, who, after her death, decides to take revenge and the dukedom by killing the eight people (played by Alec Guinness) ahead of him in the line of succession to the title.