Robert Downey Jr. first delivers the famous declaration as Tony Stark at the end of Iron Man, released in 2008. The line breaks the usual secret-identity convention and became central to the character’s public persona. It returned with a more emotional meaning during the climax of Avengers: Endgame in 2019. Across memes, fan edits, reaction videos, and gaming clips, the quote remains popular because it instantly signals confidence, revelation, and a final heroic act.