The Unbelievers documentary follows Richard Dawkins and Lawrence Krauss as they travel around the world, putting themselves in front of relatively hostile audiences in the name of promoting science and reason.
Both Richard and Lawrence are well-known figures in helping promote public understanding of science, and The Unbelievers tour is probably their most daring endeavour to date. For they will be speaking in countries that vehemently put religion and politics first when tackling issues. This is something Richard and Lawrence argue should change to move forward in a modern society.
The documentary also features brief statements by influential people and celebrities such as Stephen Hawking, Ayaan Hirsi Ali, Sam Harris, Cameron Diaz, Woody Allen, Penn Jillette, Ian McEwan, and David Silverman.