Robert Langdon (book series) Robert Langdon (book series) The "Robert Langdon" book series is named after Robert Langdon, the protagonist of the novels by American author Dan Brown. Langdon is portrayed as a Harvard University professor of religious iconology and symbology, a fictional field related to the study of historic symbols, which is not methodologically connected to the actual discipline of semiotics. Brown's novels that feature the lead character also include historical themes and Christianity as motifs, and as a result have generated controversy. Brown states on his website that his books are not anti-Christian, and that he is on a "constant spiritual journey"
Robert Langdon (film series) foil a deadly global plot. Following the worldwide successes of "The Da Vinci Code" in 2006 and "Angels & Demons" in 2009, which were both based on Brown's novels, starring Tom Hanks as Robert Langdon and produced and directed by Ron Howard, Columbia Pictures began production on a film adaptation of "The Lost Symbol". Hanks and Howard were expected to return for the film adaptation of "The Lost Symbol", along with the franchise's producers Brian Grazer and John Calley. Sony Pictures eventually hired three screenwriters for the project, beginning with Steven Knight and then hiring Brown himself. In March 2012,