Award-winning filmmaker Robert Kenner’s new documentary “Merchants of Doubt,” is inspired by the book by the same name by Naomi Orsekes and Eric Conway.

Kennar’s previous film is the award-winning “Food Inc.” that takes you behind the scenes of how the food industry operates. In this new film “Merchants of Doubt,” Kennar takes you behind the scene and shows you how the debate over tobacco and climate change are shaped and molded. What is the connection between the playbook of the tobacco industry and the climate change deniers?

“Merchants of Doubt” releases today in San Francisco and on March 20, 2015 in rest of the San Francisco bay area.

LISTEN: Robert Kennar on “Merchants of Doubt”

Photo credit: Sony Picture Classics