It is established in the opening scenes that Ethan's character only carries 15 rounds in his Department issued Beretta 92F, when he inserts a 15-round magazine and chambers a round. Towards the end of the film, while Ethan is in the bus heading for The Jungle to apprehend Alonzo, and after getting his firearm back from the Latino Hillside gang, he loads up his 92F and chambers a round. When he gets to Alonzo at his girfriend's house, Ethan initially fires 3 rounds at Alonzo (in the bedroom) while heading for the kitchen. He then fires an additional 6 rounds (2 plus 4) in the kitchen, and a final 7 rounds on the balcony while fighting with Alonzo, bringing the round count to 16 rounds. One round too many. [The magazine holds 15 rounds. Officers chamber a round, then release the magazine to fill it back to 15, therefore having 16 rounds.]

When Ethan Hawke falls onto Denzel's car at the end, Denzel starts reversing. just before he hits a car behind him, if you freeze frame it, you see that the windscreen becomes unbroken for a split second. [If you have to use slow motion it is not a mistake.]

At the end of the movie when Hawke returns home he passes in front of his garage. About a second later his shadow passes by the garage again. [Multiple light sources cause more than one shadow of the same object. The extra shadow is caused by more than one light source shining on him (Porch light, streetlamp, etc).]

Denzel takes Ethan to see the 3 wise men to get a search warrant. Near the end of the conversation Denzel asks the wise men who's driving and the guy by the window says me. Denzel asks what he's driving - he says red Mercedes. Then Denzel proceeds to walk by the red car and opens the trunk of a white car and puts the money in it. It's the wrong car. [The guy actually says grey Mercedes and Denzel puts the money in the trunk of a grey Mercedes.]

When Alonzo and the crew steal from and murder Roger, their "cover story" is that Roger shot one of the cops when he came through the door and Hoyt shot and killed Roger with the shotgun. The ambulance arrives about 2-3 minutes after they call in the shooting. How would they explain the kitchen floor being cut up and the money being dug up? It clearly took longer than 3 minutes (It shows where Alonzo smokes 4 or 5 cigarettes in the time it takes) so when, according to their "cover story," would they have had the time or opportunity to dig it up? [Alonzo and his men could have just said that they found the floor cut up when they arrived on the scene. Roger was dead when the other police arrived so there was nothing incriminating that could have linked them to the missing money, the cut up floor or the cigarettes in the kitchen.]

At the end of the film, after the fight with Ethan Hawke, Denzel Washington is sitting calmly in his car at a stop light late at night. But why would a bad cop with no regard for the law bother to stop at a red light late at night? Especially when he knows mobsters are after him? Is he more concerned about traffic laws than criminal law? [Why does a drug runner obey the speed limits? Why doesn't a serial killer murder someone with a full room of witnesses? Just because you are a criminal, doesn't mean you are stupid. You don't break any laws when someone might be watching. You do not draw attention to yourself.]

When Denzel and his crew arrive to rob Roger, Denzel gives him a copy of the warrant which Roger tosses on the coffee table. Later Denzel blasts Roger in the chest with a shotgun and begins to make up a story about what happened. But Denzel never retrieves the warrant and would therefore have to explain how Roger's chest matter got on the warrant during a shootout upon entering his house. [It was just blood and a member of their team was shot. They could have just said that someone with blood on him handled the note or something.]

When Ethan Hawke is upside down in the bathtub with a shotgun in his face you can see that he has spare magazines. In the previous scene when his pistol was handed back to him (unloaded) all he had to do was reload using one of his spares. [How? Ethan had handcuffs on. So I doubt he could reload his weapon turn himself around and shoot three guys! Especially considering the fact that he had a shotgun right up next to his face.]

When Denzel and the other guy get their car shot up as they're driving away, where do the bullets go? In the back window they appear to go straight through, meaning they would also go through the front windshield but amazingly they just stop. The front windshield is in perfect condition. [Shooting the back window not breaking the front windshield is possible at least with some 9mm guns. If the angle of rear window is smaller the first bullet can only hit the window, break it and bounce upwards from it.]

Jeff, the dirty cop who was shot at Roger's, is seen clutching his right side where the bullet got past the vest. When he comes out on the stretcher he has a bandage on his left side. BTW, they did a remarkable amount of medical treatment on the scene before they put him on the ambulance... [When Jeff is being taken on the stretcher by the medics, you can see a bandage on his left side - it looks like it's actually a wraparound bandage so it appears that they've tried to treat the wound on the right side, wrapping the bandage around his entire waistline. Only the left side of the bandage is actually visible because of the covering sheet on his stomach.]

Ethan Hawke's character would not be in a highly specialized narcotics unit with 18 months on the job, he is still a rookie. I know because I am a police officer in a major city department and it just doesn't work that way. [He was hand picked to be in that unit so he could be the fall guy.]

At the beginning of the movie, Denzel was wearing 2 platinum chains, but about half way through, he is only wearing one. [This isn't correct, the second chain was his police ID which he only wore at the start and end, and was only held up in the middle.]