Roger Donaldson's mother Dorothy appears as a bystander in a street scene where Colin Farrell is running for a taxi.

In the book of fallen CIA operatives that Colin Farrell sees on his first day, two names (Deryck Blake and Andrew McAlpine) appear: they are the film's property master and production designer, respectively.

Lately, Hollywood is pairing young actors with older, character-actors the younger ones are repeatedly compared with (because of their looks or their acting styles): check this movie (Farrell-Pacino), Spy Games (Pitt-Redford), The Patriot (Ledger-Gibson) and The Score (Norton-DeNiro, Norton-Brando).