`` The Day the Earth Stood Still '' a remake of 1951 classic . Keanu Reeves plays Klaatu , alien come to earth to tell humanity to straighten up . That 's more than you can say for a preachy , draggy blockbuster that espouses a radical message of Luddite technophobia at the same time as it conspicuously plugs Honda and LG Electronics , and dresses up its half-baked thinking in blinding ( but not that brilliant ) CGI wizardry . He is played by Sigourney Weaver
`` The Day the Earth Stood Still '' a remake of 1951 classic . Keanu Reeves plays Klaatu , alien come to earth to tell humanity to straighten up . He is played by Sigourney Weaver