Factual error: When Julia gets on the motorcycle the engine starts with a turn of the key, and then turns off the kill switch. In real life the motorcycle starts after you turn the key, disengage the kill switch then push the electric start button.
Factual error: When Norah offers Tyler a ride home, she says she is taking him to her special place near Hampden. That place turns out to be at the docks near the Key Bridge, miles away and nowhere near Hampden. (00:47:55)
Factual error: When Eisenheim is at the Vienna rail station, catching his train after the Crown Prince has died, the overhead electric cables of the modern railway are visible in several shots.
Factual error: During the "University Challenge" competition: Brian answers a question with "Calcium Sulphite" and the question-master says he gave the correct answer of "Calcium Sulphate" (a different compound).
Factual error: An AED delivers an electric shock for a fraction of a second. It is not capable of producing a sustained current, as is depicted in the movie when Roger and Dr. P are being electrocuted.
Factual error: Winter in Antarctica begins in June and ends in September. The movie says winter is beginning in February which is incorrect in the Southern Hemisphere.
Factual error: At one point, a screencast of a computer screen shows a video of Barry Brickman on the desktop environment of Windows XP (operating system, developed by Microsoft, released in 2001). However, the app that plays the video is QuickTime for Mac (which runs on Mac OS only), not QuickTime for Windows (which runs on Windows XP). These two versions of QuickTime are almost identical in every respect, except for their title bar (the narrow horizontal area above the video). (00:19:15)