Continuity mistake: When Ian and Ben are sitting on a couple of barrels discussing what the riddle means, there are a couple of balls hanging from chains very close to Ian's head. A scene or two later, there are a couple of oblong, round, flat bottomed things hanging down next to Ian's head that actually brush against the fur on his hood. Next scene, nothing is close to his head and then the balls come back and then nothing again.Sheri Hartman
Continuity mistake: When we see Ian's men pull up over the grate that they are going to go down through to get to the National Archive, we see the street wet so it had to have rained, been hosed down, etc. But when one of Ian's men drops a large bag down, it whirls up a huge cloud of dust when it lands. This shouldn't have happened because there was nothing over the tunnel but a grate and some water would have gone down the tunnel, wetting the dust.Sheri Hartman
Continuity mistake: Near the beginning of the movie when Ben, Ian and Riley are in snow CATS and we see Riley's computer screen, viewed a little from the left, and there is a jiggling hula dancer, supposedly mounted on his keyboard surface. In the background, a window has popped up showing the location and route of the two CATS. Then we hear alarm go off and we see almost the same shot but a little closer in on the computer screen. The hula girl is missing. The difference in angle and "zoom level" could not account for not seeing the hula girl in the second shot.Sheri Hartman
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
Continuity mistake: When they get ready to climb into the tunnel left by removing the coffin, Ian says, "McGregor, Phil. You stay here." When you see the people coming through the tunnel, it's not Viktor and Shaw as you would expect but Shaw and McGregor. Don't know if Sean blew his line, the writers got the characters mixed up or the actors blew it, but something went amiss.Sheri Hartman
Continuity mistake: When Riley is sitting in the car waiting for Ben, the window is gone and shards of glass can be seen in the window frame, but there has been no shooting yet. Later, the window is back and then it gets hit by a bullet and shatters.
Other mistake: When Ben, Riley, and Abigail show up at Ben's fathers house, the screen shows a title stating they are now in Philadelphia, PA. However, when Ben's father confesses that he donated the Silence letters, he says "I donated them to the Franklin Institute in Philadelphia." Normally when you tell someone where something is, you don't include the city if you are located in that city at the time. (Not to mention that I'm sure Ben knows exactly where that museum is anyway). This coincides with the next scene where you see sky shots of downtown Philadelphia and the Ben Franklin Bridge, implying they are driving into the downtown area. That means they would be coming in from New Jersey. Maybe Ben's father is supposed to be living in Jersey somewhere, and not in Philadelphia.
Other mistake: When Ian is breaking in to take the Declaration of Independence his team uses a plasma cutter to cut through some metal. A plasma cutter of that size (fairly small and portable, but able to cut through metal of that thickness) requires a 220v power supply and a compressed air supply. I doubt there was a 220v power plug in that area, and I didn't see them carrying around any kind of compressed air tank.tavenger5
Continuity mistake: The school boy is counting letters on the Dogood letters and runs out to give them to Riley. As he crosses the street, he passes a cab and a Taurus station wagon. On his second trip out, he passes the same two cars again.
Continuity mistake: When Ben is trying to grab Abigail from Ian's vehicle, we see a bus coming. There is a car on the right side of the bus (Riley's left side) in that shot. We then see Viktor stepping on the brake and Riley start pulling to the left of the bus; when Riley swing around to that side to miss the bus, the car has disappeared.Sheri Hartman
Continuity mistake: When they blow the back of the Declaration with the hairdryer, Ben writes down the numbers. When he explains to Reilly how an Ottendorf cipher works we see that there are 2 columns with 17 lines each. This leaves us with a possible 34 letters. However the riddle that they decipher from the Dogood letters have 89 letters in it. After Ben writes down the last letters Abigail switches off the dryer and we can also see that it was the end of the page so there is no way that there was more space to get more letters.
Factual error: On the back of the Declaration of Independence when the Masonic square and compass are revealed, there is a "G" in the center. This "G" was not used until the period of the Civil War. Confederate Masons refused to use the "G" as they considered it a Yankee trick. Even today the Grand Lodge of England does not use the "G." For these reasons it would be unlikely that the Masonic symbol displayed on the Declaration would have included a "G."
Continuity mistake: At the Charlotte down in the cargo hold when Ben has just figured out that the riddle refers to the Declaration of Independence, Ian's stocking hat keeps changing between scenes. He's got a two-toned hat with a jagged edge between the two colors. Sometimes, the edge is turned up so far you can't even see this design. At other times, the edge is barely turned up and crooked and the jagged edge between the colors is very prominent.Sheri Hartman