Stephen Hawking's Grand Design

Hawking tackles the question: Is there a meaning to life? Is there a purpose to our existence? Hawking explores this fascinating territory with fearless zeal as he questions the very nature of reality. You'll never look at yourself the same way again.

Hawking poses the ultimate of ultimate questions: Why does the universe exist and why does it follow rules and laws? Finding out leads to the very deepest of secrets, to the one principle that's at the heart of everything in the cosmos -- string theory.