From NetFlix:

In the year 2042, Joe (Joseph Gordon-Levitt) is a Looper, a hired assassin for the mob who kills people sent from the future. But what will he do when the mob decides to “close the loop,” sending back Joe’s future self (Bruce Willis) for assassination?

Bruce Willis should not attempt to cry in a film. In a B-film this is probably not the end of the world. In no way does Joseph Gordon-Levitt suggest a young Bruce Willis. Never mind the acting.

“Looper” tells a potentially complicated story about time-travel, although it lets its narrator looper explain slowly and carefully what looping is all about. If you need help with the details you could read the Wikipedia explanation.

What adds interest to the film is not so much two instances of the same person trying to kill each other, but the human interest involving Joe (Joseph Gordon-Levitt) the narrator: Is his life really pointless? Will he find love?

For me the most fascinating part involved Sara and her son Cid. Pierce Gagnon is one of the best child actors I have ever seen. IMDB does not give his age. At times I could not believe that so seemingly young a child could express so much in a role. His vacillations between rage and a childlike composure were something to watch.

Just suspend disbelief and enjoy the plot.