He's spent years arguing that faith is a virus and God is a fiction. Now Richard Dawkins has teamed up with his friend Lawrence Krauss for a documentary called 'The Unbelievers'.

The film documents a joint tour with Krauss and zoologist Richard Dawkins, who give a series of talks about the importance of rationality, skepticism, and atheism.

Two-night packages (which include tickets to the Richard Dawkins and Lawrence Krauss discussion) are also available for $60 to $120 for general admission, $187.50 for premium admission, and $150 ...