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)
Factual error: In the standoff between Meat and O2, Meat pulls the trigger to shoot O2 and his gun clicks - it is out of rounds. This is a common mistake: semiautomatic pistols do not re-cock after the last round is fired - the chamber remains open, so the gun will not click if the trigger is pulled again.