Cut from the same cloth as Tinker Tailor Soldier Spy but set in an Edward Snowden era, Defection tells the story of Leo Diamond, a broken down CIA case officer who uses his calculated Cold War training to go after a mid-level CIA intelligence contractor who has defected to North Korea and has taken a mysterious suitcase with him.Littell's novel is a bona fide classic, but very, very much seeped in the Cold War period in which it was written. Relocating it to North Korea wouldn't be nearly as simple as doing a find/replace swapping "Pyongyang" for "Moscow;" it would require considerable research into the ins and outs of North Korean politics and power structures (which I'm presuming are just as internecine as they were in the Soviet Union in the Seventies). And changing the defector from a scientist to an intelligence contractor, while timely in the wake of Snowden, will also create major ramifications in the novel's plot—possibly even affecting one of the all-time great final twists in spy fiction. Just making the very play-like, talky novel cinematic would be a major challenge, so I look forward to seeing how Nolan pulls it off. Saulnier is an expert at creating tension, so I have no doubt he'll pull off this difficult page to screen transition.
At one point Brad Pitt was attached to star in and produce Defection. He's not mentioned in this report, so I'm not sure if he's involved any longer.