In the film's source novel, the central setting was Berlin, Germany, but Pierce Brosnan stated that filming there would be too expensive, so the key shooting locale was changed to Belgrade, Serbia.
The birth date stated in Peter Devereaux's (Pierce Brosnan's) file, May 16, 1953, is Brosnan's real-life birth date.
The piece of music that Alice Fournier (Olga Kurylenko) plays part of is "Gnossienne No. 3" by Erik Satie. Kurylenko studied piano for seven years as a child.
One of the more complex and tricky effects sequence to pull off required a van exploding ten meters from the nearest building, while Pierce Brosnan and Luke Bracey had to walk away unharmed. The vehicle was rigged to have two carefully timed detonations, one on each side, and for the sake of safety, the vehicle was fixed so that no debris flew off. The explosion was rigged to blow twice. In the film, it's caused by Devereaux (Pierce Brosnan) cutting a fuel line and shooting into the car to set it off, so the power of the blast not only needed to lift the car, but also cause a fireball. This set-up involved two stuntmen, as CIA agents, approaching the car, so accurately estimating the reach of the flames was vital.