Factual error: Neville Chamberlain is described as chairman of the Conservative Party. He was actually party leader. Party chairman is a separate post, which was held at that time by Sir Douglas Hacking.

Darkest Hour (2017)
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Directed by: Joe Wright
Starring: Gary Oldman, Kristin Scott Thomas, Lily James, Ben Mendelsohn
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Winston Churchill: Those who never change their mind never change anything.
Question: In the 'War Room' scene, there appeared to be a sheet of plastic or acetate covering the wall with the map of the enemy's movements. Was that premature for plastic to be available in that size for that time frame?
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Answer: It was probably Perspex, an acrylic plastic commonly available at the time, used for, amongst other things, fighter plane cockpit canopies and windscreens.
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