The Firm (1993) - 12 mistakes
Directed by Sydney Pollack, starring Ed Harris, Gene Hackman, Hal Holbrook, Jeanne Tripplehorn, Tom Cruise
Continuity: As Tom Cruise is leaving Mud Island on a monorail car he passes another car with a Firm henchman in it. They see each other and the man gets out and runs across the bridge to catch Tom as his car stops. This is impossible since there are really only two cars which end up on both sides at the same time.
Continuity: In Cayman, Abby drugs Avery's drink at dinner. It takes effect as they return to the bungalow, and Avery passes out on the foot of the bed, fully clothed. In the next scene, Abby is in the kitchen, carrying the Mafia files that were in the storage room. The bedroom is seen in the background, only now Avery is under the covers and without a shirt. After being knocked out by a "Mickey Finn," it's unlikely he would wake up, undress, and get into bed, nor would Abby help him. Submitted by raywest
Continuity: In the scene when Abigail and Mitch part. Abigail gets into the car and starts the engine but doesn't reach for the seatbelt. The camera switches to Mitch, he says "Take care of yourself" and then it cuts back to Abigail driving away but this time wearing a seatbelt. The time between the two cuts is too short for putting the seatbelt on, especially because Abigail didn't even make a move to reach for it before the first cut.