What country of origin does Robert Langdon and Inferno have in common?
Robert Langdon (film series): The Robert Langdon films are a series of American mystery thriller movies directed by Ron Howard. Inferno (2016 film): Inferno is a 2016 American mystery thriller film directed by Ron Howard and written by David Koepp, based on the 2013 novel of the same name by Dan Brown.
i don't know