In an overhead shot, as Michael and Ray cross the Brooklyn Bridge to Manhattan, both their headlights are on. One was wrecked during the shootout, and is shown wrecked they dump the car.
When the two crooks rob the drug dealer near the beginning, one of them has military ribbons pinned to the left side of his watch cap (knit cap). As they're driving off from the scene, the ribbons are on the right side.
At 1:18:35 JK Simmons character Captain McKenna runs the stop sign leading up to his home. But then he signals to go into his driveway. One major violation followed by one minor correction. Odd.
When, in the beginning, their BMW escape car crashes fully, with speed and force, into the police car, it is strange that neither car pops their airbags.
When Frankie is walking trough the meat storage with her Glock pointed, the trigger is locked back which means the striker is not engaged and the gun will not fire, unless the slide is rocked and the trigger is reset.
Raymond, just before he faces Andre, kills a man with a shot in the head. However, the man in the floor is clearly breathing.
The subway station scene at the end does not exist. There is no 23rd street stop on the 7 train.
The cleaner sends the robbers to a bar on the corner of 27th and Flagler in Miami. There's no bar there. There's two gas stations, a pharmacy, and an empty lot. The nearest bar is a restaurant with a bar, but that's way further down the block.
The scenes that show police helicopters flying over the city depict the red and green navigation lights on the incorrect sides of the helicopter. Green should be on the right and red on the left. This reveals that the helicopters are CGI.
When Michael is in a hotel room he uses an Apple MacBook, yet the operating system he is shown using is Windows.
The Excel file 85, is the only one with a file date with the years in 2 digits, while the others have the years in 4 digits. No file system has this behavior. Also, the file date is (20) 17, but the data inside already goes to 2019 (while it's possible the file was for future payments, it's not very likely to predict 2 years ahead)
When police cars were rushing into Chinatown, those who can read Chinese can clearly see that the sign on the archway above reads "Philadelphia Chinatown", not the Manhattan Chinatown in which the story took place. In fact, New York City's Chinatown does not have an archway.
Despite the title and the Deputy Mayor's claim, there are not 21 bridges leading to the island of Manhattan. The borough of Manhattan contains 21 road, rail and foot bridges, but this number includes the bridge between Roosevelt Island and Queens. Roosevelt Island has no direct road connection to Manhattan island, and would not have to be closed off. The count also includes the Spuyten Duyvil and Park Avenue bridges, which are only open to trains.