The screenplay was written by Hossein Amini (Wings of a Dove, Drive), who is praised by The Evening Standard for making"highly incisive and effective revisions"to le Carré's 2010 novel:"This is a new, wholly contemporary le Carré film, sumptuously paced and produced, taking in many striking settings, miles away from the drabness so stylishly cultivated in Tomas Alfredson's Tinker Tailor Soldier Spy of 2011".
