Factual error: When the copter is getting ready to lift the bus, there is a shot where you can clearly see high-tension electrical wires and a tower behind the parade of vehicles. The wires path must have crossed the roadway the bus etc. were on just moments before. How then, did the copter remain cabled to the bus?
Suggested correction: Even though you see the tower behind the bus, the wires weren't down or attached to the bus before the tower, only afterwards.
Other mistake: In the opening coffee shop scene, Gabriel is seen preparing and lighting a cigar. Following this you have several clear shots of both hands above the table. However when he leaves the coffee shop, he has a bomb trigger in his hand, that he implies will go off if he lets go. Where was it when he was preparing his cigar and sipping his coffee? (00:01:33)
Suggested correction: That's because he picks it up as he stands.
But the dead man switch was the only thing keeping the police from subduing him. Why didn't they subdue him then?