The second time Mike and Marcus go talk to Jojo, Mike pushes Jojo over some tires and puts a gun to his head and cocks the hammer. He then draws on Marcus and cocks the hammer on his back-up weapon. He then pulls Jojo up, points both weapons at him and cocks a third hammer.
There is no point in handcuffing Julie to the steering wheels of their cars because Fouchet and his men only need to kill Julie because she's a witness, if they were to find her handcuffed to a car, they can just kill her and leave.
When the protagonists break into the air conditioning contractor's home and smell the decomposing corpse, they draw their guns. That does not really make any sense since he must have been dead for days to develop a strong decomp smell and no perp in his right mind would stick around that long.
When Marcus and Mike are at Club Hell, Mike is at the bar while Marcus is being attacked in the restroom. The foot of the dancer that Mike is watching changes as the scene cuts back and forth. The shoe and toe nail polish is different.
When Julie calls the precinct to speak to Mike, she ends up talking with Marcus. There is an out of focus flower in the foreground that alternates from perky to wilted to perky to wilted throughout the scene.
When Mike, Marcus and the Captain are on the Basketball court Mike is holding an ice pack. In a subsequent shot when they are in a close group Mike throws the ice pack on the court, in the next shot it is in his hand again.
The Porsche features leather seats. In the first scene, it's clear that the car has the option which embosses the Porsche logo on the headrest. The embossing disappears and reappears throughout the movie.
In the chase with the ether-truck, the barrels are marked with dangerous goods labels in red and white (spontaneous combustible) in the close up, it's red labels (extremely flammable). In the wide angles it's the red and white labels again.
After Marcus is thrown off the taxi, it backs up with both its left hubcaps on. Yet after Mike has grabbed Marcus and their looking at the taxi getting away as it turns left in its last shot the front hubcap is missing.
When Marcus is thrown off the taxi, the taxi crashes into a blue car. While backing up, you see no blue bumper hanging from the taxi's own bumper. In the next shot, it suddenly appears (on the left hand side of the taxi's bumper). One shot later, the blue bumper has disappeared again.
In Mike's apartment, Marcus' wife has found them out and Julie leaves the apartment via the elevator door, pursued by Mike. Marcus' wife correctly leaves by the door on the right, which leads to the stairwell. However, when we see Mike and Julie exit the elevator, the leave by the door on the left instead of the door on the right. They leave by the door to the stairwell instead of the one to the elevator.
When Julie is pointing the gun at Noah's picture on the computer screen, the file says (in the lower right corner) "CAUTION: Wanted, $ 18.000 Reward, Armed and Dangerous". In the next scene Marcus and Mike reach Club Hell and within their conversation before entering, Mike mentions, Noah's file says, he is on parole and works at the club.
In the final car chase scene, the Porsche is seen to overtake the Cobra when Mike says "Just punch it" yet in the next cut the Porsche is behind the Cobra and pulls alongside to be able to spin the Cobra into the wall.
In the final shoot out, one of the bad guys walks into an aircraft fuselage and starts shooting through a door. The two windows to his left are taped over with metal foil. The first two windows to his right are also covered over in white. Cut to a shot of the return fire. Then cut back to the bad guy. Now the two windows to his left are without any foil, and the first windows to his right is also no longer covered over in white.
After Marcus takes the bat away from Julie and is telling her the hit men are coming to get her, the bat is in his hand. In the next shot, it's lying on the floor by her leg, and then Marcus asks for the back door and throws the bat down.
When Marcus is driving, Mike remarks that "he's slow enough to drive Miss Daisy"; the shot changes to the driver's side and you can see the camera attached to the driver's door. Only visible in the widescreen release.
In the chase scene where the criminals kidnap Julie from Collins Park, they steal a taxi cab. Right after Marcus jumps on top of the cab, you can clearly see a sparkler behind the front fender. This is probably a special effect to simulate sparks from the car bottoming out.
A "cutting agent" for drugs can never be "highly volatile" because that means it would evaporate quickly and possibly even create a smell, defeating the purpose of diluting the drugs and increasing profit. They possibly meant "solvent". Then again, there is no need to treat high-grade, white free-base heroin with solvent just to cut it. What you do is just mix in any white powder that hopefully won't kill your customers outright and have generally similar physical properties. If such a substance caused problems due to humidity, the correct adjective would be 'hygroscopic'.
In a car chase scene Mike is throwing ether-barrels from a truck. After that he fires at the barrels and they explode. In real life nothing would happen if you shoot at an ether-barrel because a bullet fired on metal wouldn't cause sparks.
No reason at all for Fouchet to kidnap Julie after the shootout in the lobby of Lowrie's house - except to keep the plot going and start the chase action sequence. He came to kill the witness and there she was lying on the floor with no cover, him blazing away at any other target but her, with a gun in each hand.
Fouchet has no reason to phone the police after the unnecessary kidnapping of Julie, especially since he does not even make any demands. And as a general rule, no drug dealer ever has a reason to tell the police when exactly his next drug deal will go down.
A standard, 55-gallon oil drum weighs about 19 kilos empty. Ether has a lower density than water, but 55 gallons of ether still weigh over 142 kilos. The barrels tossed out of the van by Lowrey obviously weighed a lot less than 320 pounds, so they must have been empty.
When the crooks are breaking into the police evidence locker, they freeze and shatter the padlock, which lets both ends of the chain fall into the locker. In the same sequence, however, hands grasp both ends of the chain and pull it out through the bars as if there were two lengths of chain simply dangling into the locker and attached to the padlock. At the same time, chunks of the "steel" bars break off from the impact of the bolt cutters and the dragging of the chains revealing the bars are made of wood.
Fouchet and his men knew where Eddie was and that Max was with him; however they missed the fact that Julie accompanied Max to the hotel room. Since the broke in seconds after Julie went to the bathroom, her leaving the room should have been noticeable.
When the plane explodes inside of the hangar, not only is no one stunned , nor seriously injured (besides the guy in the plane), the closed nature of the warehouse doesn't cause its many glass window panes to shatter.
(at around 1h 35 mins) The camera appears to do a massive pan around the bad guy holding the phone. The camera angle on the actor's face does not actually change, revealing that both actor and (fixed) camera must have been on the same rig being rotated clockwise.
Fouchet is so concerned with Eddie Dominguez' partying with hookers and drawing attention after the heist that he even kills him and Max. Why would he leave the conspicuous package of heroin lying around at the scene of the double murder, thus tying it securely to the break-in at the police precinct?
In the final scene when Fouchet is running away and Mike aims his pistol at him before firing the camera looks straight down the gun barrel. You can clearly see the bright pinpoint of light coming through the firing pin channel indicating the chamber is empty, yet he fires the gun hitting Fouchet.