I guess a lot of people used to believe in extraterrestrial life until they see evidence until a foreign land Central Park as my character not in the film, but the idea that life doesn t exist anywhere, But here is crazy. How could it not be life on other planets? L universe is so vast. KEANU REEVES sure there is life on other planets, insisting that crazy to think extraterrestrials don t exist. . L actor stars in the upcoming Sci-Fi movieThe Day The Earth Stood Still, the experience of filming left him wondering alien beings. He said: I have met people who have seen UFO but I dont know who been kidnapped.