Continuity mistake: When the firefighters go to the house of the first backdraft "victim" you see that he has gone through the windshield of his car. But when we saw him opening his front door and getting hurled away from the house he didn't land anyway near the car.
Continuity mistake: After the bird of prey first fires on Enterprise, Kirk is thrown right out of his chair to his left and lands on the floor. The camera pans around the bridge briefly, seeing the rest of the crew staggering and holding onto things. In the very next shot Kirk is back in his chair shouting "back off, back off" and the crew back in their positions as if nothing has happened.
Continuity mistake: When Freddy is controlling Spencer in the video game you see from Freddy's view that his legs are crossed on the table. When it cuts to in front of Freddy he has one foot only on the table. (00:42:25)
Continuity mistake: Watch the Mustang blow up at the beginning of the movie. It looks to be about an 88 GT convert. When it is shown after the explosion it changes to an 86. Two completely different looking cars. Check out the headlamps. (00:17:50)
Continuity mistake: Guy Bannister brutally pistol-whips Jack Martin (Jack Lemmon) across the face several times as a warning never to discuss his inside knowledge of the assassination. In the next shot of Jack on the floor, he has no blood or any visible abrasions whatsoever on his face. (00:14:04)
Continuity mistake: In the part where Mike Church visits Gray Baker in the nursing home, he asks Mr. Baker what Roman Strauss said when asked if he really killed his wife. They show a flashback to when this happened and Roman bends over to tell Mr. Baker the answer. In the next shot Roman is standing up again, and then he is shown bending over again.
Continuity mistake: As William Lee types the "Report On The Assassination" in the café, letters that were visible in a previous shot disappear. (00:32:10)
Continuity mistake: At the end of the movie, the villain's car flies off a cliff and explodes, rolling belly up completely. A minute later, the helicopter flies by for the end credits, and the car is now flipped almost 180°, just tilted to the side. (01:31:20)
Continuity mistake: Cynthia walks alone to Joyce's house and also leaves by herself to clean the van. She speeds away from the house in order to clean the van in secret, but she somehow has her toddler son with her while she is cleaning the van. (00:46:45 - 00:52:16)