Goofs

Where is the ambulance? As the action really starts, two paramedics arrive at the police station. They don't leave again, yet in two clear panoramic scenes of the front of the police station, their ambulance is missing. The delivery van that arrives just before the ambulance is there, but no ambulance.

Parked around the back at the garage door. They expected to take a patient on a gurney, so, not out the front door.

When Valerie is spinning the chamber on Pena's revolver before she takes that one shot as Viddick runs away from her, they show the cylinder in slow motion, and the one cartridge in the pistol is out of position for her to either pull the trigger in double action or cock the pistol in single action and fire that round at Viddick. All that drama, all that slow motion buildup, and based on what the filmmakers have shown us despite the relatively simple CGI fix it would have taken to present just the right thing, that gun cannot possibly discharge that round.

She should have fanned the hammer until it did.

When Teddy recalls his escape from the shootout with the cops and the FBI, the number and location of bullet holes in the windshield of the red Crown Vic keeps changing.

His recall of the number and location of bullet holes in the windshield of the red Crown Vic is faulty.

Valerie is left handed throughout the movie but shoots Teddy at the end with her right hand.

Teddy is able to break into the armory by simply breaking the glass window. It is absolutely unlikely that a police armory full of automatic weapons would not be better protected (especially if you consider that other parts of the station have bulletproof windows and security locks).

As the building burns, Teddy and Val are engaged in a gunfight. Val is using the pistol she took from the sergeant's desk. On her final pull of the trigger, no shot is fired, but the slide opens and locks open. In reality, the recoil from firing the last cartridge in the magazine would move the slide back.

Whilst Teddy is hunting Anthony, he reverses the 'jungle style' magazine in Anthony's UZI, when he runs out of ammo, he reverses it again to the first now empty magazine & continues firing

Teddy uses gasoline to start a fire in the basement. Later, the fire is shown to continue burning, with flames shown at the stairs. However, as seen before, the entire building and especially the basement looks like an old industrial building, made almost exclusively of concrete. So after the gasoline was burned, there was almost no material left to burn to continue a fire of that scale.

At 52:52, after Huber shoots Mitchell, the closeup of the smoking barrel reveals his pistol did not "return to battery" - the guide rod is protruding slightly beneath the barrel. The slide is stuck slightly back (due to a jam). The gun will not fire the next shot until this is corrected.

At about 24:49, when Viddick looks at his watch, the time is shown to be 24:52. No digital watch displays that time. The highest value a digital watch can display is 23:59. When it rolls past midnight, the time would be 00:52.

Correct, but this is a Countdown Timer and they can do that.

During the shootout in the hallway, after Young hit herself with a ricochet, and is checking on her wound, you can clearly see patch around the wound area, that was glued on, to act as a wound.

At approximately 42': the handcuff on Bob's right wrist is too loose and he could easily slip out his hand and free himself.

Toward the end of the movie, when "Teddy" and "Valerie" are fighting. Teddy drops from the second floor balcony in the police station and as the slow motion shows, the assault rifle drop far from the body. In the next scene when he tries to shoot at the officer, the character is holding the assault rifle in his hands while laying down on the ground.

When Valery locks Ted in a cell, she says, state law requires that we put inebriated prisoners in their own cell. Then when Bob is brought in, clearly inebriated, she helps the other officers put Bob in a cell with another prisoner.

When Viddick is cuffed in the cell you will notice 80% of the time his hand are in cuff but it's open cuff.

Valerie throws Teddy the keys to get himself out the cell but then how did he her out of the holding cells with her still sitting in front of the door.

When Muretto is trying to find Lamb, he follows him into a bathroom where he shoots at a mirror. As he does so, the mirror doesn't break in synchronisation with the gunfire.

The ambulance dispatcher should have checked back on their team and raised the alarm when the paramedics did not update their status (sitrep on the radio or "departing from scene" message) after some time on scene.

Bob states that "aspirin is bad for your liver"; it is inaccurate, paracetamol (aka acetaminophen) can be damaging to the liver when overdosed but aspirin will more likely provoke gastro-intestinal discomfort, nausea, bleeding and activation of peptic ulcer, bronchospasm and skin reactions.