Sony Pictures has unveiled an international trailer for Looper, director Rian Johnson's sci-fi thriller set in a world where time travel exists, but isn't legal. The story centers on Joe (Joseph Gordon-Levitt), an assassin working for the mob who goes back to the past to eliminate the mafia's targets. The plot thickens when Joe encounters his future self (Bruce Willis), who is sent to close the "loop" by taking him out. Take a look at new footage from this time-bending story.