The scream comes from Star Wars: The Empire Strikes Back, released in 1980, during Luke Skywalker's lightsaber duel with Darth Vader on Cloud City. When Vader severs Luke's right hand, Luke lets out this agonised cry before falling into the reactor shaft below. The moment became one of the most famous scenes in the saga, and the isolated scream has since been reused online in reaction edits, fail compilations and meme videos to exaggerate sudden pain, loss or shock. Its familiarity keeps it instantly recognisable even without the film context.