Richard Dawkins built his reputation as an evolutionary biologist with "The Selfish Gene," a book that reframed evolution around the gene rather than the organism and provoked argument inside biology for decades afterward. This profile traces that career alongside his second, louder role as one of the most recognizable public voices for atheism, using interviews and personal reflection to connect the two. It follows him back through his early years and academic training to the moments that pushed him toward writing for a general audience rather than only for other scientists, and it lets him explain, in his own terms, why he moved from describing evolution to actively challenging religious belief. The film stays close to Dawkins himself throughout, treating his scientific work and his public arguments about faith as two chapters of the same intellectual life rather than separate stories.