In the shootout with Kirby, Officer Brown fires at least nine shots with his six-shot revolver without reloading.
The guards never put the money in the back of the truck, it was left on the loading dock, so blowing up the truck was not required and the money should not have come flying out of it when it exploded.
Just before the armored car robbery, Jose is seen holding a single revolver in his left hand with his right hand open. A few seconds later he's holding the revolver in the other hand and a bag in his right hand. Then a few seconds later he's holding a semi-automatic pistol in each hand. Then a few seconds later he's back to holding a single revolver.
In the beginning when Curtis said he wanted to travel, Skip told Curtis he didn't even have a job. A couple minutes later, it is revealed that Curtis delivers milk.
When Cutty stands over Anthony and holds a pistol to his head, the hammer isn't cocked. Cutty had just drawn the semi-automatic pistol from beneath his jacket and racked the slide on his way down the stairs to confront Anthony, so the pistol's hammer should have been cocked at this point.
Cutty tells Anthony that he "can't even put food on the table" without any knowledge that Anthony lost his job.
The arguments between Anthony and Juanita reveal that even with his job working for Saul, Anthony is unable to fully support his family, so Cutty doesn't need to know about Anthony losing his job in order to goad him with this comment.
When Jose blows up the armored car with the ordnance, the back of the truck raises up in the air and falls back down on top of a heavy metal pole revealing that the pole is what caused the armored car to jump up into the air, not the explosion.
In the scene where Skip dies in his apartment, you can see him still breathing on the chair.
When Cutty punches Anthony, there is no way that Anthony could've rolled down the staircase since the punch was in the opposite direction of Anthony's fall.
At the bank doors on the dock, the soundtrack implies metal doors being unlocked and opened/closed. The door opens and you can see that there are no bolts. It has a deadbolt but nothing on the door edge suggesting an opening. At the top edge of the door it looks almost wood like. The door did not even lock or have a doorknob channel.
A 1973-1975 Ford F-350 utility truck can be seen in the background of the Spring 1969 scenes.
The armored car that was blown up in the 1973 scenes was an International Harvester "S-series" medium duty conventional truck. So was the prison bus in 1974. International Harvester Company did not manufacture these types of trucks until 1978.
In the scene where Larenz is playing pool with Cowboy, Larenz is leaning on the table and cowboy yells at him to get off the table, there is a large white sheet of cardboard laying in the middle of the table. When the shot changes angle to the view from the distance the sheet is gone.