"Klaatu Barada Nikto" in the film 'The Day the Earth Stood Still".

In the 1951 original version of The Day the Earth stood Still, Klaatu was played by Michael Rennie.

"The Day the Earth Stood Still" . ("Klaatu barada nikto")

The words spoken to the robot Gort to save the Earth in the 1951 film The Day the Earth Stood Still are "Gort, Klaatu barada nikto." They were spoken by the character Helen Benson to stop Gort from destroying Earth after Klaatu's death.

In the 2008 remake of the 1951 film "The Day the Earth Stood Still" the role of Klaatu was played by Keanu Reeves .