The gun Big Little Man tossed to Trash was a 6 shooter yet Trash fires 8 bullets.
When Trash's father smashes the disinfestor's helmet in slow motion with a baseball bat, the next shot shows the wounded disinfestor falling down into the hallway. However, in this second shot, his helmet is completely undamaged
As Floyd Wrangler is driving the armored van, he runs over the same dead body twice.
As Wangler is driving out of the Bronx past all the bodies one of the "dead" reacts to the gun shots as if startled (just before Wangler shoots Trash). Again, only visible on the UK Vipco DVD.
As Trash breaks the Disinfestor's arm you can see another Disinfestor actor with his helmet off sitting in the background watching what is happening (only visible on widescreen version).
When Trash is being shot at from the helicopter, the gunner goes through the motion of shooting him but no sound or gun-flash is heard or seen.
When the two Disinfestors are about to flame Trash's mum look to the right of the screen and you will see a crew member visible for about 3 seconds (only visible on the widescreen British Vipco 2004 DVD release).
The location scenes in New York City are very obviously filmed in Queens, not The Bronx.