British independent watchmaker Peter Speake-Marin was asked to be a consultant for the scenes where Pierce Brosnan is at a workbench. Upon meeting, Brosnan was so impressed by Peter that he purchased one of his watches, and subsequently, Speake-Marin asked Brosnan to become a brand ambassador, to which he agreed. Pierce Brosnan is possibly the most high-profile celebrity to become an ambassador for any independent watchmaker. Prior to his official role as ambassador, Pierce can be seen wearing a Speake-Marin "Piccadilly" wristwatch during filming, in candid photographs, post-production, and a pink gold model during his 2015 Super Bowl commercial for Kia. In the movie, the store, located at 29 Bruton Street, is labelled "PSM Bespoke Watchmakers", "PSM" is an abbreviation commonly used by Peter Speake-Marin. In 2017, he left the company to focus on an educational enterprise.
The view through the magnifying lens in the Watchmaker's secret lab, shows the Watchmaker simply adding a blob of solder to a standard micro SIM card.
The City of Westminister College was the location used for several of the Embassy rooms and offices.
Kate Abbott (Milla Jovovich) is described as a Foreign Service Officer and State Department employee in the synopsis, and as a member of the Bureau of Diplomatic Security in the dialogue. This context indicates that she is a Diplomatic Security Service Special Agent. All Special Agents are considered to be Foreign Service Officers. Diplomatic Security is the same agency for which Lucas Hobbs (Dwayne "The Rock" Johnson) works in The Fast and the Furious franchise.