Kristal

Factual error: As Ben is clinging to the staircase while it is falling apart, there is a close-up of a nail being pulled out of the wood. This nail is round-headed, rather than square as it would have been over 200 years ago. It's also shiny instead of rusty, which indicates that it's galvanized. Galvanization as an industrial, metal-preservation process was not patented until 1837, and was not used in building materials until well into the late-1800s. Since the film states the staircase was made by "the Founding Fathers, " and there was no galvanization of iron nails in any industrialized nation in 1780s-1830's, this is a huge anachronism.

Kristal

Continuity mistake: As Ian watches our heroes leave Independence Hall the clock in the tower reads 3:27. That gave Ben only five minutes to climb down the tower, dig out the brick, meet up downstairs, unroll the Declaration and decipher it, realize they're being followed, plan their escape and leave. It took me longer to write all of that.

Kristal