Keanu Reeves at the New York Premiere of 'The Day the Earth Stood Still' at AMC Loews Lincoln Square. New York City, USA - 09.12.08

The actor stars in forthcoming sci-fi movie The Day The Earth Stood Still, and the filming experience left him wondering about alien beings.

He says, "I’ve met people who have seen UFOs but I don’t know anyone who has been abducted. How could there not be life on other planets? The universe is so vast.

"I guess a lot of people won’t believe in extraterrestrial life until they see evidence, until an alien lands in Central Park like my character does in the film, but the idea that life doesn’t exist anywhere but here is crazy."

Source: WENN