Other: The Russian flag in the Russian commander's office is upside down.

Factual error: In the beginning of the movie, we see one of the two journalists playing "The Game" in a Game Boy. The other journalist says that the game is available in cartridges and floppy disks. The problem is that the guy playing the game doesn't even has a cartridge inserted in the Game Boy. It's impossible to play ANY kind of game in a Game Boy, if the Game boy doesn't have a cartridge inserted in it.

Factual error: Following the incident with the microscope, the Russian Forensic Scientist is afraid she will be sent to Chernobyl - Why? Since the breakup of the USSR, it's in a different country (Ukraine), so the Russian Authorities are highly unlikely to send her there.

Continuity: During the car chase scene near the end of the movie when Connors jumps on to the black car the windshield is only slightly lowered. Later during the chase the gap is much bigger and when we see Callahan struggling in the back seat it's lowered all the way down. Also, Connors grip on the car keeps changing between closeups and far off shots.

Continuity: When the group is arriving in Moscow the plane shown during the landing is an Ilyushin Il-62, with four engines on the tail. When they exit the plane and are greeted, you can see an engine under the wing of the plane.