The Day the Earth Stood Still

In "The Day the Earth Stood Still" (2008), an alien named Klaatu and his robot, Gort, arrive on Earth with a message of warning to humanity about their destructive ways. Klaatu is taken into custody by the government, leading to a race against time to prevent a global catastrophe. The film explores themes of conservation, peaceful coexistence, and the consequences of humanity's actions on Earth.