The line comes from Star Wars: Episode III – Revenge of the Sith, released in 2005, during Obi-Wan Kenobi and Anakin Skywalker's confrontation on Mustafar after Anakin has joined the Sith. Fans have long quoted the exchange as a shorthand for a friend's shocking turn, and short clips of the moment later circulated widely in meme edits and soundboards. Its appeal lasts because the question is instantly recognisable to Star Wars fans yet works without context, giving any inflated plan or sudden power grab a mock-serious, betrayed tone.