In February 2008, Flynn agreed on film and book projects with CBS Corporation units CBS Films and Simon & Schuster/Atria Books. Lorenzo di Bonaventura was negotiating to produce "Mitch Rapp" films. The first film, "American Assassin", was released on September 15, 2017. Atria Books got worldwide rights to four books by the author. In August 2010, Flynn signed a two-book deal for a new series that he would have co-written with Brian Haig, a retired Army Lieutenant Colonel. He was a frequent guest on "The Glenn Beck Radio Program" on the Fox News Channel, and on Dan Barreiro's radio program on Twin Cities station KFAN.