According to sources, 'Snowden' actor Joseph Gordon-Levitt will star in the upcoming sci-fi thriller, Sovereign. In the film, Gordon-Levitt will play a man who travels up to a space station to find his estranged wife and the crew of the station, all of whom have mysteriously gone missing. Marc Munden will direct the movie from a re-written script by Jack Thorne. The film will be produced by Shawn Levy, along with his 21 Laps Entertainment partners Dan Levine and Dan Cohen.