Continuity mistake: In the scene where Corky first enters the Vet Clinic, and speaks to the "patients", the shot when he first speaks to the old man with the Bassett Hound, the dog is in the chair on the man's left, but in the next shot, the dog has moved to the right, and the man has shifted to the left side of the chair.
Continuity mistake: When Corky is dressed as the girl scout and is about to kiss the female agent/nurse, there is a side shot of them and they're leaning towards each other. Then there is a close-up of the female agent and she is puckering her lips. When it switches back to the side shot, she isn't puckering. This happens several times throughout the scene.
Continuity mistake: When Corky is chasing the cat at the start of the movie, he opens (breaks?) his fly trying to get the snake out of his pants. In the next shot, he is squatting facing the camera looking at the cat (who is at the bottom of the shot). It is obvious his fly is done up again, even though no attempt has been made to do up the fly.
Continuity mistake: In the scenes where Corky and other FBI agents are in a meeting room Corky pours himself some water. He then scoots a glass of H20 over to the female agent. He makes a big scene by leaning across the table. Anyway, the glass of water is sitting next to the woman, the angle changes and its not there, the angle changes back and it is there again. Look closely.
Continuity mistake: The scene where Corky is taking the cocaine to the lab he runs into a dog, in one scene a bowl of water is in front of the dog, in another scene the bowl is further away.
Continuity mistake: When Corky is trying to infiltrate the skinheads one of them pulls a gun on him. From one angle he is holding the gun sideways, and from another he's holding it normally.
Factual error: When Corky is trying to get into his family's underground casino and is being worked by the wrestler girl and the "little person", his wallet falls out. The little guy picks it up and looks at his license. The next shot shows you the license is from Florida and this license number starts with an "L". That is incorrect because in Florida your license number always starts with the first letter of your last name. In Corky's case the letter "R".
Continuity mistake: When Corky goes though the metal detector for the first time, it beeps because of the wire in his crotch. When he goes though the metal detector throughout the movie, it doesn't beep again.
Continuity mistake: When Corky is riding outside of the car after he gets locked out. The steering wheel of the car changes in each shot.
Continuity mistake: In the scene where Corky's hand is trapped in the window as the handcuffed criminal drives the car backwards, the stunt man's hand comes loose. This is most visible as the car comes out of an alley, two passersby dive out of the way and you can see the stuntman's hand come all the way out, then reach back in the window.
Continuity mistake: In the scene where Corky is at the vet and the woman with the cat asks Corky to kill her cat, Corky puts a cup of tea down on the table. In the next shot where you see the cup again it is moved.
Continuity mistake: When Corky is first in the car with his brothers, as Paulie is talking Corky's whole forearm and hand is resting on the seat. In the next shot, his arms are crossed so his forearm is now on top his other forearm. And throughout the car scene, his arms constantly change position.
Plot hole: At the end, Pops is cleared of all charges. But the only thing he did was prove Leo lied about some things Pops supposedly did. Its highly unlikely the FBI would drop all the other charges that Pops had really done (illegal gambling, money laundering, etc).
Factual error: Corky gets sprayed in the eyes with pepper spray. He then tears the woman's shirt off and just wipes his eyes. You can't just wipe off pepper spray - he wouldn't be able to see for at least 15 minutes.