Looper is a 2012 American science fiction action film written and directed by Rian Johnson. The film stars Bruce Willis, Joseph Gordon-Levitt, and Emily Blunt. In Looper, time travel is invented by the year 2074 and, though immediately outlawed, is used by criminal organizations to send those they want killed into the past where they are killed by "loopers", assassins paid with silver bars strapped to their targets. Joe, a looper, encounters himself when his older self is sent back in time to be killed. The film deals with themes of time alteration, age, love, crime, and parenthood.

Looper has received near-universal acclaim from critics. As of October 17, 2012, it holds a 93% "Certified Fresh" rating on Rotten Tomatoes based on 227 reviews and an average score of 8.1/10, with the reported consensus: "As thought-provoking as it is thrilling, Looper delivers an uncommonly smart, bravely original blend of futuristic sci-fi and good old-fashioned action."On Metacritic, the film holds an 84/100 average rating based on 44 critics, indicating "universal acclaim".