Factual error: Dr. Lane must have become a pretty good typist by the end of the film. Not only can he perfectly type in Hebrew characters on a perfectly normal US keyboard (which, for example, has no four H's like Hebrew but one), he can also type at a ten character per second speed with one finger, not mentioning that he's only pressing keys around J.
Other mistake: During the scene where the Asian man is fighting off a security guard, the guard kicks his head back one time when no-one appears to have hit him.
Factual error: When Lane is talking with his wife and they are bugged, the one who listens to their conversation through a radio-like machine turns up the volume to hear them better. The thing is, he does that by turning the knob that says "Channel" under it.