Continuity mistake: On the chopper, when Sean Archer points his gun out the window, in the shot facing him the window to his right is a double slide type. In the next shot, from inside the chopper, his arm is through a single window that flips down. (01:23:00)
Continuity mistake: When Jaime is screaming, Castor Troy (as Sean Archer) walks out to the front yard and the back tires/end of Karl's car is on the sidewalk, but when Karl is dragged out, the car is farther up the driveway. (01:24:50)
Continuity mistake: At Dietrich's, when the firing begins, Sasha grabs a woman and they both start running up the stairs, but a few shots later when Sasha yells, "Cas, be careful with him," she and the woman are still downstairs. (01:33:40)
Continuity mistake: At the church, just as the shooting is done with, Eve is leaning down with her hands covering her head. Then, in the close-up she uncovers her head and sits upright to look around, but in the next shot, she's still leaning down covering her head. (01:54:30)
Continuity mistake: On the speedboat at the end of the movie when Archer and Troy fly through the air, you can see foam on their clothes even though in the next scene their clothes are dry. (02:02:25)
Continuity mistake: During the speedboat chase, when Castor Troy (as Sean Archer) shoots up the white speedboat that Sean (as Castor Troy) drives, there are numerous bullet holes on its starboard side. Four shots later, when he hits the box on the rear seat, those bullet holes on the starboard side are gone. (02:04:15)
Continuity mistake: On the speedboat, when the anchor comes loose from the boat's bow it takes with it a large chunk of metal and leaves a gaping hole, but next shot, as the anchor falls to the water, the huge hole is gone leaving only the bullet holes on the surface. (02:07:20)
Continuity mistake: After the second speedboat explodes, when Sean (as Castor Troy) pulls the speargun trigger, Castor (as Sean Archer) grabs the spear shaft before it can unload. As he grips the gun, the problem is that in some shots the slings are still loaded, but in other shots they are not. (02:09:00)
Continuity mistake: When Castor (as Sean Archer) grabs the speargun shaft before it can unload, he takes a piece of glass and begins to cut his face. The broken glass has a small circular piece missing from the edge, but from a different camera angle that small piece is more intact than the previous shot. (02:09:15)
Continuity mistake: When Castor Troy (as Sean Archer) says, "Every time you'll look in the mirror, you'll see my face," he proceeds to cut his face. The first cut he makes is straight down the side of his right cheek (viewer's left) and later that cut is curved and closer to his nose. This may appear to be a mistake at first glance; however, Castor's facial expression is different in the two images. When he made the cut, the cheeks were pulled away from the nose; in the second photo, the muscles are relaxed, moving the cut closer to the nose. (02:09:15)
Continuity mistake: At the end of the film, when Nicolas Cage and John Travolta are lying next to each other in the ambulance, there is no blood on Travolta's shirt collar and suddenly, between shots, the collar is covered in blood.
Continuity mistake: When Castor (as Sean Archer) is speared, as he stands there singing morosely his shirt is drenched in blood, but when he is next seen in the ambulance that blood on his shirt has vanished. Additionally, the cuts on his face produce blood trails which smear, when he is first speared, but in the ambulance his face is cleaned up and the blood trails are thin and neat.
Continuity mistake: When Sean (as Castor Troy) stabs Castor (as Sean Archer) in the leg, the type of speargun actually changes between shots, it is an entirely different model. The spear tip differs as well.
Continuity mistake: When Archer and Dubov are making their escape, Dubov falls over the rail and Archer catches his gun barrel then tries to save him. In the last shot before Dubov falls, Archer is holding on to the very last tip of the gun, but in the wide shot he is holding a lot more of the barrel.
Continuity mistake: When Sean Archer is flying the helicopter to keep the plane from taking off, Castor Troy shoots the helicopter windshield three times, but there are four bullet marks.
Continuity mistake: After leaving the Hummer, when Sean gets into the chopper the cabin interior changes in the following shots. This includes the windshield, hand grip, wall, etc.
Continuity mistake: Eve and Troy visit Mikey's grave. When they first go out to the car, it's cloudy and raining, but they get to the cemetery and the sun is out and everything is completely dry.
Continuity mistake: When Castor (as Sean) grips the speargun, in the following close-ups, the sling ends (with its wishbones) differ - just note the rings around the rubber ends.
Continuity mistake: During the cemetery scene where they visit the son's grave, you see a wide shot of them walking between the stones. There are leaves on the trees and neatly trimmed grass. When we see a close up of the stone and the plaque in the ground, a hand reaches down to brush the leaves off so they can read it, and there are dead leaves all around - but there were no leaves on the ground in the wide shot.
Continuity mistake: When Castor arrives at the airport, behind him there is a parked car in front of the building which on it reads "Welcome to Southern California International Airport", that disappears and reappears.
Chosen answer: It's obvious that enough time hasn't passed for a trial of such magnitude to take place, meaning that the brothers have been remanded in custody to await trial. They should have been arraigned but we don't see that onscreen.