Factual error: The helicopter used during the exchange is a Mi2, which has not been in service with the Russians since the 1970s.
Factual error: When Dominica is tasked with swapping Intelligence using a laptop in the hotel, she is using floppy discs which is highly unlikely in the realm of international espionage. Not only do they not hold enough info at only 1.44MB each, but laptops have not had floppy drives for quite some years and this movie is supposed to take place in 2017.
Suggested correction: As late as 2020, police and military authorities used floppy discs to store sensitive information. They may have been obsolete and clumsy, but they cannot be duplicated unless you have the original disc and a floppy disc drive – making them doubly secure – and floppy disc drives cannot be read remotely or "hacked".
Other mistake: Dominica breaks her left leg and then holds her crutch (and the golf club) in her left hand. This is a frequent Hollywood mistake. If you are using a walking stick or a crutch, you hold it on the strong side, then the natural swing keeps it in sync with the injured leg and improves balance.
Factual error: When they arrive at Heathrow and are met by the Aeroflot hostess twice the tannoy can be heard announcing a British European Airways flight. BEA and BOAC merged to form British Airways in 1974.
Factual error: In two shots during the Heathrow sequence, a CGI airplane is seen taking off in the background. The airplane is depicted as a British Airways 747-8 Intercontinental. However, BA has never flown this type. They fly the older 747-400, which is distinguishable from the 747-8 by its vertical winglets. The newer type features blended wingtips.
Suggested correction: British Airways did fly 747-8s under the Global Supply Systems brand. These planes still had BA livery, so would look the same.
British Airways flew 747-8F's (the freighter version) circa 2013, distinguished by the shorter fuselage upper deck hump. The airplane depicted in the film has the longer upper deck, common to the 747-8 Intercontinental (passenger version).
Other mistake: During the CIA interrogation Simon's wrist watch shows the time as appropriately 4:25 but the clock in the wall in the same room above him shows the time as appropriately 10:25. (00:39:00)
Suggested correction: So he had his watch on a different time zone. Not implausible in his line of work, and 6 hours is certainly consistent with the difference between the various US and European time zones involved in the story. Character choice or mistake.
Good point about the time difference.