The Day the Earth Stood Still

The Day the Earth Stood Still is a 2008 American science fiction film serving as a loose adaptation of the 1951 film of the same name. Directed by Scott Derrickson from a screenplay by David Scarpa, it stars Keanu Reeves as Klaatu, an alien sent to try and change human behavior in an effort to save Earth from environmental degradation; this version replaces the Cold War-era theme of nuclear warfare with the contemporary issue of negative human impact on the environment. The film co-stars Jennifer Connelly, Jaden Smith, John Cleese, Jon Hamm, and Kathy Bates.