Bruce Willis joins sci-fi thriller 'Looper'

Bruce Willis has joined the cast of sci-fi time travel thriller Looper.

According to Deadline New York, Willis joins Joseph Gordon-Levitt in the movie from Brothers Bloom writer/director Rian Johnson.

The film centres on hitmen whose victims are sent back in time to be executed.

Willis and Gordon-Levitt will reportedly play the same character in different timelines.