The line comes from Harry Potter and the Philosopher's Stone, released in 2001, where Rubeus Hagrid arrives on Harry's eleventh birthday to tell him about Hogwarts. In the original English version Robbie Coltrane delivers the line that became one of the film's most quoted moments. The French dub rendered it as Tu es un sorcier, Harry, and that version circulates separately among French speaking fans. Clips and remixes spread through forums, video edits and soundboards, keeping the reveal popular as a shorthand for discovering magic or a secret identity.