The line comes from the 1987 fantasy adventure film The Princess Bride, directed by Rob Reiner and adapted by William Goldman from his novel. Mandy Patinkin plays the swordsman Inigo Montoya, who has spent years searching for the six-fingered man who killed his father. His repeated introduction becomes central to the film’s climactic confrontation. The quote remained popular through television reruns, home video, online discussions, reaction clips, and image macros because its formal wording makes even trivial acts of revenge sound legendary.