Matthew Michael Carnahan

Matthew Michael Carnahan is an American screenwriter. Among his numerous works are screenplays for The Kingdom (2007); the film adaptation of the hit BBC television drama serial State of Play; and Lions for Lambs for United Artists. He also worked on the zombie film World War Z (2013).

He wrote the screenplay for the feature film Dark Waters (2019), based on a 2016 feature article about industrial pollution in The New York Times magazine.