The Day the Earth Stood Still (2008)

Cast: Keanu Reeves, Jennifer Connelly, Jaden Smith, Jon Hamm, Kathy Bates, John Cleese, Kyle Chandler, Robert Knepper, Brandon T. Jackson, James Hong

A representative of an alien race that went through drastic evolution to survive its own climate change, Klaatu comes to Earth to assess whether humanity can prevent the environmental damage they have…