Born and raised in Colorado, Langdon has produced and edited documentaries and features in Rome, Cairo, New York, Los Angeles, and Chile, including Oliver Stone's Persona Non Grata, Abel Ferrara's Chelsea on the Rocks and Mary, winner of the Venice Film Festival Special Jury Prize, and Discovery's Peabody Award-winning Black Sky: The Race for Space. For HBO, his credits include Greg Barker's The Final Year and Koran by Heart, as well as Fenton Bailey and Randy Barbato's Liberty, Mother of Exiles, and Best Documentary Emmy-nominee Mapplethorpe: Look at the Pictures.
His producing credits include the 2013 documentary Salinger. Langdon's films have played at the Cannes, Venice, Berlin, Toronto, Tribeca, Sundance, and other film festivals, in churches, mosques, schools, and theaters worldwide, and for the U.S. Council on Foreign Relations. He is the founder of Monkey Puzzle Media, a global film production company based in Santiago, Chile.