The 2008 version centers on (Keanu Reeves), an alien messenger who arrives on Earth with a dire warning. Unlike the original Klaatu, who warned against nuclear proliferation, this modern iteration serves as a representative of a group of alien civilizations concerned with the ecological health of the planet. His message is simple but devastating: if the Earth dies, humanity dies; but if humanity dies, the Earth survives.

Keanu Reeves delivers a characteristically stoic performance, perfectly capturing the "otherness" of an extraterrestrial being inhabiting a human shell. Jennifer Connelly provides the emotional core of the film as Dr. Helen Benson, the scientist tasked with communicating the value of humanity to a being that sees only our destructive potential. The BluRay Visual Experience

The reimagined GORT (Genetically Organized Robotic Technology) is a massive, silent sentinel. In 1080p, the scale and the shifting, swarm-like composition of the robot are far more menacing and detailed than in standard definition.