|Joseph Gordon-Levitt & Bruce Willis in Looper|
The use of time travel in film and television plots usually rubs me the wrong way because I feel it tends to be a gimmick or deus ex machina sort-of copout that papers over the screenplay writer's lack of imagination. It seems that you inevitably end up with a plot that makes no sense. But in the case of Looper, writer-director Rian Johnson handled the time travel aspects beautifully. Indeed, they are central to the plot's premise.
If you are a sci-fi fan, definitely go see it. However, be forewarned that it is pretty violent, has some female nudity, and some truly horrifying moments.
I thought Gordon-Levitt was excellent in the lead role... I think this is really his movie, not Bruce Willis's. Watching the play of expressions over Gordon-Levitt's face, and his mannerisms, I got the impression that he went into the archives of the Eighties hit TV show, Moonlighting, to study the young Bruce Willis.
And by the way, if you are a film noir fan and have never seen the 2006 Rian Johnson film, Brick, definitely do rectify that. It's a very classic kind of noir story set in a SoCal high school, and also starring Joseph Gordon-Levitt as a type of teen-aged Philip Marlowe trying to solve the mystery of his former girlfriend's murder.