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 inflicted on their own planet. When barred from speaking to the United Nations, he decides humankind shall be exterminated so the planet can survive.

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  1. Scott Derrickson


  2. David Scarpa


Top Billed Cast

  1. Keanu Reeves

    Keanu Reeves


  2. Jennifer Connelly

    Jennifer Connelly

    Helen Benson

  3. Kathy Bates

    Kathy Bates

    Regina Jackson

  4. Jaden Smith

    Jaden Smith

    Jacob Benson

  5. John Cleese

    John Cleese

    Professor Barnhardt

  6. Jon Hamm

    Jon Hamm

    Michael Granier

Full Cast & Crew

Movie Data


Status Released

Original Language English

Runtime 1h 43m

Budget $80,000,000.00

Revenue $233,093,859.00

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Release Information

  • December 12, 2008
    PG-13, Theatrical
  • April 7, 2009
    PG-13, Physical



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