Factual error: Jasper is implied to live somewhere south/southeast of London, however when Theo meets him at the railway station signs can be seen reading "Alresford", the filming location, which is in Hampshire and too far west to be a plausible meeting place.
Factual error: There are numerous rusty warning signs around the test sites from the Department of Energy. The DOE wasn't created until 1977 but the tests occurred from 1945 to 1962. They should have read Atomic Energy Commission (AEC). (00:06:40)
Factual error: When Angier and Cutter are looking for a new workshop they enter a room, with a fully glassed wall on one side. A very modern white radiator is in the room. (00:35:00)