Noted author and screenwriter, Cunningham, has made a significant impact in the literary and film industries. Prior to returning to his passion for novel writing, he penned novels that were widely published and sold film rights to numerous studios. His work has been associated with major Hollywood studios, including Warner Bros., Disney, Joel Silver's production company, Imagine Entertainment, HBO, and Redford's production company.
Some of his notable works include the uncredited writing for the film "The Fugitive" and "Manchurian Candidate". He has also written scripts for films such as "Shiva" at Disney, "Isobar" and "Flamingo" for Joel Silver, "Rockwood" at Imagine, and "Dempsey" at HBO.
In addition to his work in film, Cunningham has also written novels that have been published worldwide. His novel "Die Tauferin" (published under the pseudonym Jeremiah Pearson) was a best-seller in Germany and was published by Bastei Lubbe. The novel is the first in a trilogy set during the Reformation, with the second book scheduled for release in 2016 and the third book planned for 2017.