Factual error: The Blairs are in a car travelling down the motorway when Tony receives a phone call from a lord. In the background the passing scenery is leafless trees and a bare winter landscape, but the events of the film take place during the English summer.
Factual error: When Tony Blair is at his home in front of a large bookcase, there are at least two books behind him that were published after 1997, when the film is set. The thick, distinctive spines of David Mitchell's 'Cloud Atlas' and Jonathan Franzen's 'The Corrections' can both be seen.
Factual error: There's a scene where Tony Blair, in the back seat of a car, makes a phone call from what looks like a Nokia 6210 - a phone which Nokia didn't introduce until 2000, at least two, and possibly three years after the movie was set.
Factual error: The film claims that Robin Janvrin was HM Private Secretary in 1997. When in reality he took office in 1999.