Short Time (1990)

Continuity mistake: Dabney Coleman and the villain fight on the scaffolding on the side of a skyscraper high above the city. They are the only two people on the scaffold, but during the fight at the bottom of the screen you can clearly see a man's head.

Continuity mistake: During the car chase, the bad guys are in front, followed by several marked police cars, then by the red unmarked car; they are all on a curved exit ramp (after the construction zone). In wide shots with no bullets hitting them, the marked cars are Dodge Diplomats, same as the unmarked red car. But in close-ups, when bullets are striking them, the marked cars magically become Chevrolet Caprices. This occurs at least twice. (VHS version.)

johnrosa

Continuity mistake: During the chase scene when the two cars are side by side down an alley, one car is scraping the guard rail and making sparks, but in the background the guard rail is still sparking with no car near it.

Carl Stark: Help me.
Burt Simpson: You got to be kidding.

Burt Simpson: You can't spend your whole life planning what'll make you happy tomorrow or you'll never be happy today. You've got to do it now.

Carl Stark: Burt is chasing Stark up a long stairwell in an office building. Stark is a few flights above Burt. He throws a hand grenade down the stairs. It lands right in front of Burt. Burt shouts with elation that he is finally going to die. The grenade rolls away and falls down the middle of the stairwell exploding harmlessly far below. Stark looks down and says, "Yeah."
Burt Simpson: Burt suddenly peeks out from just a few flights below Stark and shouts, "you missed ME again, you idiot!"