Continuity mistake: In the beginning of the movie, near the end of that first getaway scene, the black BMW is missing its passenger side-door mirror. It reappears from time to time, depending on the shot. It is first missing the mirror as the car approaches that train yard/docks area. (00:01:20)
Continuity mistake: The style of the seat and headrests in Frank's car repeatedly changes, from the time he awaits the first transport in the garage, through all the following shots. In the opening shot of the car's interior, the bottom of the headrests are sandwiched between the raised sides of the backrests. When Frank drives out of the garage the backrests do no not have raised sides and the headrests are rounder. (00:01:20)
Continuity mistake: When Frank is on the way to the bank, he stops at an intersection and a couple of people cross. On the right side of his car (as on the screen), that part of the lane is empty. Then there is a shot of Frank inside the car and you can see cops in their patrol car next to him, while in previous shot there was nobody there. (00:02:50)
Continuity mistake: During the 1st chase when camera is showing how Frank's hand is shifting gears, there's one shot of the bank robber's hand getting hit with the gearstick while Frank is shifting. Next shot shows all bank robbers in the car with visible hands. No one is that quick to move his hands so fast. (00:05:20)
Continuity mistake: When Frank is being pursued by the blue police car, while transporting the three AIC robbers, the blue car's front license plate becomes lopsided to the right and then to the left, but when the car stops short at the traffic barrier the license plate is on properly. (00:06:50)
Continuity mistake: When the blue police car pursues Frank, who is transporting the AIC robbers, as they pass pillars (between the two cars) a man rushes behind one of the pillars facing it, but next shot his back is up against the pillar. (Only visible in widescreen.) (00:07:00)
Continuity mistake: The antenna/aerial mast located on the rear windshield/hood of Frank's BMW vanishes and reappears repeatedly. For instance, before the first shot of the two garbage collectors walking, in the closeup of the two AIC robbers in the back seat looking out through the back windshield (one screams) the antenna/aerial mast is gone. (00:07:30)
Continuity mistake: When surrounded by police and a garbage truck, Frank drives his car from the overpass onto the passing transport trailer below, then lands behind a hatchback and in front of two cars - a white compact with a sunroof and a grey hatchback. In one specific shot from atop the trailer, as Frank rolls his window down (before he requests the gun) the only vehicle behind Frank's car is the white compact, which is at the trailer's rear. Note things such as the trailer's safety bars, and the view through the compact's windshield for starters. That grey hatchback is back when the ramp is lowered, for the ensuing crashes. (00:08:20)
Continuity mistake: While transporting the three AIC robbers, when Frank drives backwards down the auto transport trailer, the driver side mirror breaks as it passes the trailer's side safety bar, but that mirror is intact again by the next shot. (00:08:35)
Continuity mistake: When Frank reverses down the auto transport trailer's ramp, the BMW's front right (viewer's left) foglight (located on bumper) breaks off. In following shots the foglight is intact. (00:08:45)
Continuity mistake: When Frank is shown removing his spare wheel from the trunk of the car, it appears to be a standard BMW alloy wheel (from a 740 series I believe). Then, when he is first lifting his car with the jack, the car has the standard BMW alloy wheel already installed on it, yet in the next shot where he removes the wheel, it is his own aftermarket wheel that he is removing. He is then shown installing the standard alloy wheel. (00:17:35)
Continuity mistake: When Frank slits the duct tape on Lai's mouth, the position of the slit changes after the initial close-up. (00:19:30)
Continuity mistake: When Frank takes Lai out of the trunk, she sits with her hands tied as she shakes the bag off her shoulder, and her pink top's spaghetti strap drops down below her white sleeve. Next shot the pink strap is on properly. (00:21:05)
Continuity mistake: When Lai is taken out of the trunk she is wearing mid-heel, pointy toe pumps. During her escape attempt and when Frank lifts her over his shoulders she is wearing black soled, round toe flats, then changes back and forth a couple more times. (00:21:25 - 00:23:00)
Continuity mistake: As Lai is allowed to pee, she escapes. Frank gives chase, and she in her panic falls down the hill. Watching on DVD, you can see upskirt and note she was given flesh colored pantyhose. Before and after her tumble though, she is not wearing any. (00:23:00)
Continuity mistake: When Lai has to pee and runs off down the hill, we see Frank run after her and pick the duct tape (from her mouth) up off the ground. It is obviously covered in sticks and dirt when he finds it, only to be clean when he finds her and sticks it back on her mouth. (00:23:05)
Continuity mistake: When Frank begins his revenge rampage on Wall Street's men, there's a close-up of Lai bound to the office chair with duct tape across her mouth and the slit Frank made earlier is gone, so at first it's to be presumed that it's a new piece of tape. However, when Lai pokes her head out from the back seat of the car Frank stole, there is a slit in the tape, but when he pulls her and the chair out onto the road the slit's gone, only to return again when Frank brings her to his house. (00:28:40 - 00:32:50)
Continuity mistake: When Frank's revenge at Wall Street's home is near an end, as Lai rolls the office chair toward the door her legs are bound to the chair base, and her hands are tied behind her back (not to the chair). When Frank finds Lai in the car, now the rope is only tied around her ankles when he removes her (and if that were the case she had no reason to hide in the car with the chair in the first place). (00:29:15)
Continuity mistake: Frank has the fastest microwave in the world. It looked like he programmed his microwave for three minutes to cook noodles. Frank then talks to Lai for just over 30 seconds when the microwave beeps, indicating the time is up. (00:33:35)
Continuity mistake: When Inspector Tarconi is in Frank's kitchen eating Lai's Madeleine cookies, he's holding the cookie with his left hand in the close-up, but next shot it's in his right hand as he takes another bite. (00:40:40)
Chosen answer: You notice that Frank removes those items from a bicycle frame. Those are stirrup-style rat trap bicycle pedals. They have serrated metallic edges which supposedly give Frank traction on the concrete floor, despite the oily mess.
Charles Austin Miller