When Storm fights the four guys in the billiard room, he stabs Jack Axel in the jugular with a pool cue, who then falls to the floor and dies with the cue still lodged in him. When Hulland enters the room shortly after and sees them lying on the floor, the cue that was lodged in Axel has vanished.
The villain fires his gun downward at the orderly's stomach on the left side. The bullet hole appears on the orderly's upper right shoulder.
When escaping the ambush at the hideout, Mason drives the black jeep across a field (and crashes through a white pavilion) and one shot is flipped - you can see the bullet holes in the windscreen move around, and Mason at the wheel sitting on the wrong side of the car.
Despite the fact that it has been hidden behind a wall for seven years, when Mason retrieves his camera from his old house, there is not a speck of dust on the camera, and it looks almost brand new.
Mason's jeans change from black to blue as he stands up at the cemetery.
There is no way "Mason Storm" would have been able to perform even the limited movement he shows after seven years in a coma. He would not have had the strength to push his bed with a mop.
When the Jeep is being shot at from the garage roof, the bullets appear to bounce of the canvas convertible top.
When the Jeep driven by Mason Storm hits the bad guy in the field, the bad guy flies straight up into the air. The laws of physics dictate that he would fly away from the Jeep in the same direction as the Jeep is traveling, if not simply get run over.
When Storm is looking at the newspaper articles from the night he was shot, one of the papers has a photo of Storm and his wife laying on the bed after the shooting. For confidentiality and to protect victims, crime scene photos are never published in a newspaper.
Even though Mason Storm is avenging the death of his family at the hands of corrupt police and a crooked senator he actually commits several crimes in doing so he car jacks two individuals brutally snaps the neck of someone after he clearly has the upper hand on them in a fight then takes the senator hostage at gunpoint innocent or not he would have faced charges for attempted kidnapping carjacking and murder and would have been in jail right along with all the people who framed him..
After a firefight in which he fires two shots from a pistol holding at least seven, Storm racks the slide on the pistol, presumably to cock it before the next firefight, but this would be unnecessary as the next round in the magazine would already be loaded, and cocking it from this position would simply eject the next round. No round is ejected, and the pistol is revealed to be empty, as a round would be visible through the bullet ejection hole if there was one in the gun.
The poker that the bad guy swings at Mason is a fake. The top of it flies off after the first swing.
When O'Malley gets up from behind the cab after getting shot once and attacks the bad guys with the tire iron, his jacket flies open and the blood squib is clearly visible under his shirt.
During the ambush at the hideout, there is a henchman at the front door, when Mason throws Andy to the floor, and covers her up just before the explosion of the door, you can see that the man who is protecting her is a stunt double - his face is turned towards the camera.
When they start shooting at Sonny Storm after gunning down Mason and his wife, Mason can be seen moving his hand as he lays unconscious on the bed.
During Mason's "Recovery Montage", he is seen performing Accupunture on him self. Though he is alone throughout the process, at one point during the montage, he is shown with two needles not only inserted into his back, but said needles are somehow able to be lit, even though the needles are clearly out of reach.
When Storm is being chased in the Corvette, he stops before hitting the police cars that blocked his escape. The backup lights go on, then the camera shows the Storm put the car in reverse. The backup lights went on before he puts it in reverse.
At the beginning of the movie, right after the doctor tells Capt. Hulland that Storm is dead, O'Malley turns around and, after Hulland tells him he's sorry, in the audio you hear him say, "The most unstoppable sonuvabitch I ever knew." But if you watch his lips, he says "The most unstoppable sonuvabitch I ever met."
Black padded mats for the actors/stuntmen to fall on are arranged on the floor of the convenience store where Mason Storm stops in to get some champagne.
After the fight scene at the friend's home, you see Mason driving the Jeep through the field/grass. In one shot he is driving with Andy is in the passenger seat, yet in a shot right before they hit the wooden archway it's possible to see a man on your left (the passenger seat) and a blonde woman n the right. Clearly neither are 'Steven Segal' or Kelly LeBrock.
When Becker gets shot and falls over the bed, you can see the wire leading from
his pant leg that is used to fire the blood squibs.
Mason isn't filming at all when Senator Trent steps into the light. He is instead trying to adjust the camera. The Senator shouldn't be on tape, therefore.
Storm kills one of the intruders in his bedroom. Presumably this is another corrupt cop like the rest of the gang. Axle and Quintero are not seen hauling a dead body back to the van so they obviously left the dead body sitting in the bedroom. In the seven following years no one ever questions why a cop was shot to death in Storm's bedroom or bothers to investigate blatantly obvious corruption within the police department.
After gunning down Storm and his wife, the hit squad remain at the house planting evidence and searching for the recording of Trent. However, the gun shots from the shooting would have been heard by the whole neighborhood who would have alerted police and had units dispatched to the house within minutes. The hit squad should not have had time to remain at the house following the shooting.
When Storm is holding the Senator towards the end, the Senator calls the police officer walking up to Storm "Sergeant". The officer has Captain's bars on his uniform, Sergeants wear chevrons on their sleeves.