Continuity mistake: When Luc is offering War some of the deviled eggs, you can see that Lola is looking around in one shot, then in the next shot, she is in the background, facing forward, not moving at all.
Revealing mistake: War manages to pick up his gun out of a barrel of burning materials, without getting physically or even visibly effected. The gun does not even have any sign of being in the fire, no smoke, no burn marks or anything.
Continuity mistake: When Jimmy is being hanged, after he grabs Luc Crash, you can see the position of his hands around Luc changes between several shots.
Revealing mistake: When "War" explodes close to the end of the movie, you see a window being blown apart, but you can see there is nothing behind it and that is was just an on set window blowing up, and wasn't caused by the explosion outside.
Continuity mistake: The barrel in the back of Pestilence's truck is leaking badly through a hole when it first pulls up. Then a few moments later, the hole and leak are gone and the truck bed is perfectly dry. Then he kicks the barrel and the same hole reappears.
Revealing mistake: When Jimmy and War are fighting outside the church, the gun they have shoots bullets, which fly into the church. The only problem is that there is almost no shot where the gun is pointed towards the church, so it makes no sense there are bullets constantly whizzing around inside.
Continuity mistake: After Jimmy and Lily are caught by Lily's father and brother, as they walk away, Lily's brother turns his head to face forward twice between cuts.
Revealing mistake: When the hearse driver slams the brakes, in the next shot, it is obvious the car was already stopped and just shaken from off camera to make it look as though it stopped. No car can brake that fast.
Continuity mistake: When Luc Crash is escaping the guards in the beginning, the other prisoners all disappear in a number of shots.
Audio problem: When Pestilence puts the bug in his mouth, we hear a crunch as if he is chewing it, yet a few seconds later he spits it out and it is not chewed up at all.
Visible crew/equipment: When War is blasting the fence in the beginning, you can see wires for the squibs running along the metal fence.
Continuity mistake: When the Tribe takes Jimmy down from the cross, in one shot he is laying down with three large metal spear-heads and ropes sticking into his chest. Yet in the very next shot as he rises, they are gone, without him having any time to have pulled them out.
Continuity mistake: When the scorpion is crawling over Jimmy in the beginning, the amount of his shirt that is open changes between shots.
Plot hole: After the bird is hurt, Jimmy is shot several times and wounded very badly. Yet just seconds later, he is able to save the young boy, and mysteriously use many of his "crow powers" despite being hurt very badly.
Continuity mistake: When Lilly's brother is arresting Lola at the end, in one shot he walks up to her, but in the next few shots he is standing several feet away, where he was before he walked up to her.
Revealing mistake: When Lola is cutting out Lily's eyes, you can tell from her movements that she is not really cutting them out.
Continuity mistake: When we see dead Pestilence laying on the ground, there is shattered glass all around, yet not that much glass was broken in the previous scene so this makes no sense.
Revealing mistake: The bug-zapper that is supposedly electrocuting Pestilence doesn't actually touch him.
Continuity mistake: When Jimmy wakes up at the beginning of the movie, he is covered with feathers and "fluff" from a pillow. However, the amount of material on him changes between shots and even disappears in some shots.
Revealing mistake: When Luc and Jimmy fly about at the end, in some shots you can easily tell it is stunt doubles and not the actors.
Answer: As I understand it, it all had to do with a spat between the director of the original Crow movie (Alex Proyas, who had "approval" of all the subsequent Crow movies) the producer of the Crow movie franchise, Jeff Most, and Miramax. Miramax eventually caved in favor of the producer and it was made into a "non-Crow entity" when Miramax reportedly signed Eminem to play the bad guy.