Factual error: In the scene where Lucy Lui blows up Vancouver city police cars they are depicted as dark blue. Vancouver police are white and green.
Factual error: Why are the FBI investigating and following their case if it's in Canada? The FBI or any other law enforcement agency in the US has no jurisdiction in Canada.
Factual error: After Ecks has just been buried by the metal pipes he shoots the guy who comes to kill him. He then uses his gun to help him up. I know someone who was in the army. Rule number 1. Never put your muzzle in the dirt. Then Ecks put his weight on the gun, forcing it deeper into the dirt. (01:11:00)
