Revealing mistake: Right after Darius blows the boats, Steele is on the dock firing at him. It is shown that he shoots a couple rounds but his finger is not on the trigger.
Visible crew/equipment: When Agent Stone first escapes from jail and he is about to get into the GTO, as he opens the car door you can see a crewmember in the reflection of the car. And as they drive off, you can see the huge reflector screen in the back side of the car.
Factual error: Stone sneaks aboard the USS Independence (CVA-62) to investigate the bad guy's arms cache..yet, when he dives into the water, he is jumping off the USS Hornet (CVS-12).
Continuity mistake: After the prison break they are in a burger bar - Stone gets up empty handed and tells the other 2 how many laws they have just broken. When he finishes he drinks from a milkshake that has suddenly appeared in his hand.
Continuity mistake: When we see the train get blown up on the bridge Darius is nowhere to be seen falling, but in the next shot he's falling under the carriages.
Continuity mistake: Gibbons' scars on his face disappear and reappear between shots towards the end of the film.
Continuity mistake: When Darius is hanging on the helicopter, the way he holds it changes in between shots.
Visible crew/equipment: As Gibbons' car drives into the car park the dolly tracks are reflected in the red car.
Factual error: It's been proven that when falling fast towards water, breaking the surface tension makes no difference in it's "softness", yet XXX is fine when he falls into the water after shooting it. If he fell for 5 seconds he would be going 60-70 mph and would certainly be injured or killed upon impact.