Continuity mistake: When the industrial plant explodes at the end of the film, as Peyton and Angela/Jenny escape, in the wide shots you can see the flames are so big, that they actually set the actors on fire. However, in closer shots, not only are the actors not on fire, but the explosions are much smaller.
Continuity mistake: When Rooker has his gun pointed at Westlake during the climax, watch closely. Throughout the scene, he's holding his gun sideways in a side grip. Right after he says the line "I don't think you'll be needing that anymore, doc!", he rotates the gun upright into a normal grip. However, in the very next shot, he's once again holding his gun in a sideways in a side grip. (These shots are back-to-back, so there's no way he was able to rotate it again between cuts).