Factual error: Finishing his rounds on the morning of Christmas Day, flying over downtown Chicago, the sun is over the horizon west of Chicago, Sunrises occur in the east, not the west. (00:26:10)
Factual error: The military ranks for everyone but O'Neil are wrong. O'Neil is a Colonel (Full bird), Kawalsky is wearing the insignia of a Lt Colonel, but is referred to by O'Neil simply as Lt., when he should be called Colonel. All the others are wearing enlisted stripes (Ferretti - TSgt, but is credited as Lieutenant Ferretti), the others are also credited as "Lieutenant", but wearing enlisted stripes.
Factual error: Paris was surrounded by the German army on September 20th 1870, until January 1871 due to the aftermath of the Franco-Prussian War. This was an obvious danger after the defeat of the French army on September 2nd. No-one in Paris, however, seems to notice. (01:10:25)
Factual error: In the first scene of the movie, a diver is underwater, and he is talking to someone on the radio. How can he talk, when he is biting down on the mouthpiece from his scuba tanks? And his mouth is obviously not moving. (00:00:40)
Factual error: We are told at least twice that the airport scenes take place at Newark International Airport (now Newark Liberty Airport) in New Jersey, but one shot shows a sign that reads "Bienvenue a Montreal," showing where the scene was actually filmed.
Factual error: While hanging from the top of the Empire State Building, the sailor looks straight down the side of the building, which is shown to be flat. This is wrong. From the observation deck, there is another level that sticks out below, where the lights that shine upwards are stored.
Factual error: In the flower garden when Elizabeth, Jeremy and Harry return after they become disappointed with "outdoors" Mom, Miss Cavour shows them a flower she calls a zinnia, but it is actually a morning glory. A related error is that morning glories don't come in multiple colors on one vine. (00:21:00)
Factual error: Justine is accused of murdering Victor's young brother and is taken by police. A lynch mob takes her to the top of a fortress wall, drapes a noose around her neck and tosses her over the side. She falls for what looks like at least 8 metres. When the rope comes taut, she is killed but her head isn't ripped off by the force of the fall. Falling for that distance should have torn her head from her body.
Factual error: Roger's dad says when the "Angels win the pennant." During the last final scene/regular season game, after the win, Ranch Wilder announces that "the Angels won the pennant." They would have to have won the American League Championship Series in order to win the pennant.