Before the shootout at the hotel the shot of the sign is the Hotel Roosevelt but at the end the sign is the Roosevelt Hotel..
When Cozier went to visit his sister in rehab as they are talking a woman that sits on the bench can be seen sitting in the bench in some shots and gone in others.
Attica, baseball cap alternates from facing front to back. It switches several times without him touching it.
The 'fed cal' bank they rob, at the beginning of the film, appears to be at least 40 stories tall, yet when the gang go further up, to the roof, to make their escape in the helicopter, the roof looks no more than 15 stories above ground.
Before the armored car heist, John puts an automatic rifle together with a scope. He then sights it in. Then between shots of him during the scene, a set of scope cups is alternately on and off the scope. With the scope cups on he wouldn't be able to see through the scope.
The FBI and BATF investigate bank robberies; local police are secondary.
Idris Elba's character is named Gordon Cozier, but he is listed in the end credits as playing "Gordon Jennings".
When Jack Welles catches wind of Gordon Cozier's sister, Naomi, through tracing numbers on cash used to purchase drugs, Jack types into the search line - Naomi, Cozier - as opposed to a proper naming search of Cozier, Naomi.
A Ducati sports motorcycle is used throughout the movie. Ducatis are renowned for their distinctive twin cylinder snort, which is unlike almost every other modern bike. Yet, every time it appears the sound we hear is that of a big Japanese 4 cylinder sports bike, nothing remotely like the sound of a Ducati.
(at around 1h 30 mins) When someone asks "Where is A.J.? Where is A.J.?", on the right side, a crew man is clearly visible (white socks, sports shoes, headphones and shorts).
When they are running away in the tunnel from the armored car heist, a cameraman can be seen in the shadows on the left side.
After the firefight in the hotel and they are in the back room standing around for a brief second on the right hand side you can see the leg and arm of one of the production crew.
(at around 1h 28 mins) When the guys are being shot at in the hotel room, Jake asks where AJ is and you a cameraman is visible in the background.
(around 47 min.) Reflected on the rear bumper.