Continuity mistake: In the scene where Jessica is in the shower crying and the power goes out, she gets out, puts on a white t-shirt and goes walking around the house. When she walks through the garage door and grabs a hammer, there is blood on the front of the t-shirt (right at or a little lower than her waist and looks like someone grabbed the shirt with a bloody hand). Where did it come from? She didn't run into anything or anyone. [There's a deleted scene showing her step on a piece of glass. She gets blood on her hands when she pulls the glass out, then presumably wipes her hands on her shirt. Still a mistake, as removing that scene means the blood appears from nowhere, but there's the reason.]
Continuity mistake: When the windows on Nick's truck are smashed, Elizabeth has protective gloves on when she covers her face from the glass, they are then gone when the truck comes to a halt.
Continuity mistake: After Nathan pours the gasoline and throws the match in the well, we see a canister and shotgun sitting by well. But when the well explodes, they've disappeared. (01:23:50)
Continuity mistake: When Jason throws Linderman to the wall he gets impaled by a sharp object stuck to the wall. However as Linderman is flying against the wall before hitting it the object isn't there. (01:13:40)
Continuity mistake: Before Bonnie's operation to remove her scars they can be seen across her back and down one arm, yet in at least two scenes before the operation she is seen wearing sleeveless or very short sleeved tops with no scars visible.
Continuity mistake: When De Niro first meets Nolte's lady-friend, they are having a conversation in a bar or restaurant. As the camera goes from De Niro to the woman, the woman's top blouse button is open in one shot, then closed, then open, etc.
Continuity mistake: When Miroslav is massaging Whitney in the hot springs, the amount of body scrub cream on them drastically changes during shots.
Continuity mistake: As Mike scrolls through the microfilm, we see his view as the pages scroll from right to left. The shot then reverses to show his face through the scrolling film, but while the film is now properly reversed, it's still moving right to left in our view. But this reversed angle should show it moving left to right. (00:12:05)
Continuity mistake: When they are chasing the 'muncher' ghost down the street, the light bar is only seen flashing on the Ecto 1 when seen from inside the restaurant. The rest of the time they are not on. (00:59:00 - 00:59:30)
Continuity mistake: After Rain shoots all the xenomorphs in zero gravity, and she and Andy have to traverse through the floating blood splatter, the bodies of the dead xenomorphs have suddenly disappeared.
Continuity mistake: When Rhonda climbs out of the ditch with Earl, where the graboid has killed itself, her backpack is slung over her right shoulder and hanging in front of her. In the next shot when she's standing up, the backpack is on her back.
Continuity mistake: The guard rail disappears when the camera cuts then is back again before the bus goes off the road.
Continuity mistake: When Maddie is coming up with an ending to her novel, she opens one of the ending drafts. Not long after opening the draft, she decides to go on facetime and make a call, whilst the draft is still open, then the man she is trying to contact calls her back. She then closes the laptop and tidies up. When she returns and opens up the laptop, the draft that was just shown on the laptop has become a completely different one. (00:10:10 - 00:14:25)
Continuity mistake: When the main characters first decide to go diving, they are all wearing ordinary bikinis. By the end of the film, the surviving characters are wearing diving suits.
Continuity mistake: Near the start, after Lucian saves Sonja from the werewolves. Before Sonja throws Lucian the the sword, Viktor and his guards are walking around the corner next to the ladder. When she throws it they disappear, when Lucian catches it they reappear. (00:06:30)
Continuity mistake: After Emily burns her home it's night time, then she follows the police cars and it seems like evening, and when she comes out from the water the sun shines in the background.
Continuity mistake: When the Leprechaun is telling his slave who tried to run away that it was his 1000th birthday. The scene is set a very long time before the first film, but in the first film he tells the cop that he is 600 years old.
Continuity mistake: In the first two Omen movies, Damien's mark of the Beast was hidden on the top of his scalp. In this movie, it's behind his right ear.
Continuity mistake: When the judge is being followed through the town of Copperfield by the two guards, the guards are driving a Ford pickup truck with a standard cab. In the first interior shot of the truck, it appears to be an extended cab truck with a gray interior. In the next interior shot (when they are about to get out), it switches back to a standard cab with a red interior.
Continuity mistake: During the sheriff interview scene with Abbey, the time is listed as 3:45am, but later in the scene, the clock reads 2:15am.