Continuity mistake: After he exits the limo, the Black Mask's entourage man with the long hair has the briefcase handcuffed to his left wrist. When he is walking up the steps, he is carrying the briefcase in his right hand, until he stops halfway up the steps and the briefcase is handcuffed to his left wrist like it was. (00:03:25)
Other mistake: Visser was face-to-face with Omar when she shot him in the neck (looked more like it would be in his mouth before the camera shift) yet she did not get any blood splatter on her shooting hand, face, or clothes. There also wasn't much blood on Omar considering he was hit with a near-contact if not actual contact shot. (00:45:41 - 00:47:12)
Revealing mistake: The $100 bills in the briefcase looked quite fake and were obviously a prop. (00:13:40)
Continuity mistake: The clock on the wall at Pee Wee's Pawn Shop advanced from about 12:00 to 12:05 when Frank was talking to Jerry, but it was back to around 12:01 after a few camera shifts. (00:05:59 - 00:06:24)
Character mistake: Nolan said, "Everybody knows that no sharks swim in freshwater" and Spencer said, "They don't come into freshwater", but there are freshwater sharks (e.g, river sharks) and bull sharks (not true freshwater sharks) can survive in saltwater or freshwater. Jacob Harper (National Aquarium) pointed out eyewitness accounts of sharks swimming up the Mississippi River and "bull sharks have kidneys that recycle salt" but did not mention the glands near their tails that help keep salt in their bodies. (00:08:08 - 00:29:50)
Other mistake: Virgil drives the truck across flat land, yet the dashboard and A/C unit atop it are angled at about 45°. Views of Keith in the passenger seat show a level/horizontal dashboard and A/C unit, like they should be. (00:17:12)
Revealing mistake: While Jimmy was driving (apparently on a single-lane road), a car passed him on the right and seconds later two cars passed him on the left. (00:25:10)
Revealing mistake: The 50 dollar bills that appear in the opening credits all have the same serial number (and you can find online the texture they used with great ease, just like the one for the 20 dollar bills stack). (00:03:45)
Continuity mistake: Before the family went outside, the fire extinguisher was part-way below the window sill. When Peter (father) went inside, the fire extinguisher was away from the window sill (more toward the right of the screen). (00:07:33 - 00:09:12)
Continuity mistake: The Hawaiian grandmother was making a speech at the end. One shot shows she's wearing white sneakers then in the next shot she's wearing sandals.
Deliberate mistake: The thug wearing headphones and facing the money on the shelves did not notice that Savage forcefully opened the door several feet to his right, slamming it against the adjacent wall, or that Savage had entered the room. The bang to and vibration from the door hitting the wall should have been enough to overpower the sound from his earphones, but - even if they weren't - his peripheral vision should have sensed the door opening and Savage entering. (00:02:55)
Continuity mistake: The bite marks on Doc's sandwich were inconsistent/contradictory. Doc took a corner bite out of his sandwich, then the sandwich was shown with an additional side bite mark (made off-screen?). When the sandwich was shown again, the distinctive bite marks were gone and the side of the sandwich that had been eaten was straight across. Doc was holding the sandwich in his right hand; after another camera shift, Doc was holding the sandwich in his left hand and the unique side bite mark was back. (00:18:22 - 00:18:48)
Continuity mistake: The clock on the wall behind Casey jumped from 10:45 to 11:00 while he was talking to his wife and daughter. At times, the clock appeared to have 3-4 hands and when a hand should have been visible behind his back pointing at "12", no hands could be seen. (00:19:16 - 00:19:46)
Continuity mistake: The way Banshee's bangs are combed back vary a few times in a couple minutes (elevator fight scene). Sometimes, the left side is higher than the right side and other times the highest point is near the middle of her forehead. The "curve" at which the bangs are combed toward the right side also vary, from little to no curve to wavier toward the right. (00:06:36 - 00:07:57)
Other mistake: James told Det Vargas he left the bar "2:30, give or take" and Vargas responded, "bar closes at 2:30 [AM]." When Star approached James at the bar, she said, "When I see a guy alone at the bar at three in the morning..." It is questionable if Detective Vargas was correct about the closing time. Traditionally, bars in L.A. closed at 2:00 AM. CA's Business and Professional Code on serving alcoholic beverages apparently now allows serving alcohol until 3:00 (not 2:30) AM - was this in effect? (00:04:33 - 00:11:50)
Continuity mistake: There are two stand-up picture frames on the table. Judy knocks over one picture frame as she walks towards and points mace at Burton. Judy continues holding the mace in her right hand and purse in her left and does not bend over to upright the frame. When Judy leaves, the picture frame is upright and roughly parallel to the other frame. (00:25:45 - 00:27:20)
Revealing mistake: The views to the right and left of the truck on the road did not flow in the manner expected if they were actually there (as opposed to using a green screen). Also, as soon as a "stop" sign could be seen to the right, the camera shifted to the driver, who kept driving as though the stop sign was not there. The structures to the right of the truck were blue but became white when the camera shifted to a front view (not using a green screen). (00:01:20)
Continuity mistake: Ishmael shots Karim in the right side of the stomach, but the wound moves to the left side.
Continuity mistake: Smoke was no longer coming out of the wrecked car when The Thief had his back to it while he was shooting at a thug's feet, but it resumed when The Thief turned around to face the car. (00:05:20 - 00:05:43)
Continuity mistake: The time of day changes multiple times during the first half of the movie. When Danny is talking to Papi, Papi is outside and the sun is in the west indicating late day. In Danny's angle the sun is right overhead. There are multiple times when it is full on overcast in one angle and cloudless blue sky in the next.