Audio problem: When Dr. Lane is typing at the end of the film, the number and frequency of sounds for the typed characters does not match either the number or the speed the Hebrew characters appearing on the monitor.
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.