The line comes from Christopher Nolan's 2008 film The Dark Knight, spoken by the Joker during his hospital confrontation with Harvey Dent. Heath Ledger's performance helped redefine the character for a generation and the scene became one of the film's most quoted moments. Clips of the exchange spread through movie edits, quote accounts and soundboards, where the short question is now used on its own to suggest improvisation, chaos and a lack of any real strategy behind someone's actions.