Jason R. Reitman is a Canadian–American filmmaker. He is best known for directing the films Thank You for Smoking (2005), Juno (2007), Up in the Air (2009), Young Adult (2011) and Ghostbusters: Afterlife (2021). He has received one Grammy Award, one Golden Globe and four Academy Award nominations, two of which are for Best Director. Reitman is a dual citizen of Canada and the United States. He is the son of director Ivan Reitman, and known for frequently collaborating with screenwriter Diablo Cody.

Thank You for Smoking is a 2005 American satirical black comedy film written and directed by Jason Reitman and starring Aaron Eckhart, based on the 1994 satirical novel of the same name by Christopher Buckley. It follows the efforts of Big Tobacco's chief spokesman, Nick Naylor, who lobbies on behalf of cigarettes using heavy spin tactics while also trying to remain a role model for his 12-year-old son. Maria Bello, Adam Brody, Sam Elliott, Katie Holmes, Rob Lowe, William H. Macy, J. K. Simmons, and Robert Duvall appear in supporting roles.