Andrew Upton

Factual error: Just before the planes start to cross the channel, we have a scene of a reporter with some British soldiers. They wear the cap and collar badges of the Royal Corps of Signals, which wasn't formed until 1920 - 10 years after the film is set.

Andrew Upton

Factual error: One of the questions Jamal has to answer is "Who invented the revolver?" to which the answer is given as Samuel Colt. Colt didn't invent the revolver, or even claim to invent it - he merely took a form which had existed for many years and substantially improved it. For example, Elisha H Collier patented a flintlock revolver in 1818 when Colt was only 4 years old which was produced in numbers for the British forces in India. More info: http://en.wikipedia.org/wiki/Elisha_Collier.

Andrew Upton

Deliberate mistake: During "Consider Yourself", watch the meat-cutters - the cleavers they use never cut into the meat, just bounce off harmlessly. Obviously too dangerous to try and use real ones in such a crowded environment.

Andrew Upton

Other mistake: At the very beginning of the film, we see Christie commit a murder at the end of the Second World War whilst wearing the uniform of a Special Constable. Christie served during the First World War, and he wears the ribbons of the 1914 or 1914/15 Star, the British War Medal and the Victory Medal on his tunic. Unfortunately, whoever put them on put the bar upside down - they read from left to right VM, BWM, Star.

Andrew Upton