Revealing mistake: When the parking lot building collapses, check the right side where the cars are. All along the ground level there's a rectangular strip where the film of the miniature building was pasted on top of the film with the real-sized parked cars. Note how all the debris falls behind that strip, it never falls on top of the cars, as if there was a weird black hole of some sort. (01:37:54)
Continuity mistake: During the fight at the bar, the bald man is lying against the wall, with a man on top of him. Immediately after, barely half a second later, their positions are totally different: the bald man is away from the wall and on top of the other man plus the surrounding people have changed places and pool cues have appeared out of nowhere.