Continuity mistake: During the shooting between Bats, Darling and Buddy with the guy in the white suit and the "cops" Darling gets shot in the right arm then she keeps shooting and moves back, but in the next shot she is at the front again.
Factual error: When the astronaut is being questioned by a 3-star general, he keeps referring to the officer as "colonel", in fact the closed captioning does the same.
Continuity mistake: The license plate on the Mercedes driven by Vers Lockman changes from New York to New Jersey and back to New York. (00:25:20 - 00:31:23)
Continuity mistake: At the beginning of the movie, Jamie Fox is stabbed. He goes to the men's room and the wound is on the right abdomen area as he applies the dressing to it. The rest of the movie shows him holding the left side of his abdomen area and the blood stains on his shirts also are also on the left side. (00:16:50 - 00:45:30)
Factual error: Sister Charlotte listens to Janice's confession. Only a priest is allowed by the church to hear confessions.
Audio problem: There are American crows (Corvus brachyrhynchos) calling in the distance during the initial pursuit for Quan in the forest behind the Belfast farmhouse, right after the trap door scene ends and we see two of Hennessy's men share a look. American crows do not exist in Ireland - only hooded crows, carrion crows, rooks, ravens and choughs.
Plot hole: The world depicted features magic, an evil overlord who 2,000 years before tried to conquer the world, and several races. Despite these HUGE differences with our world, everything turns out of the same as our world, with nations as they are now, and a casual mention of the Alamo and "Mexicans still getting shit" for it. So our current history has not been altered a single bit by wizards, dragons and super-strong races roaming the Earth. Fine. In this ungodly implausible context, orcs live with humans in cities that mirror ours; humans and elves don't trust them, but still they live in towns with them, they go to schools, run businesses, half of the NFL is formed by orcs. Even the movie Shrek exists! And yet, at the end of the movie Nick Jakoby becomes the first Orkish police officer in the USA! There is just no way a society like this, mirroring closely our own and with orcs that existed as long as humans did, can exist with no orc ever been part of law enforcement.
Continuity mistake: Katherine Heigl all of a sudden has yellow socks when she's fighting in the last scene. (01:31:10)
Continuity mistake: Clare's pants split at her knee because she falls off her bike and she gets injured. When she returns home later to see her father, the pants have been fixed and there is no hole.
Other mistake: When the Polish police officers are shot in the van, there is no blood splatter at all. Two seconds later there is blood on the wall. When the guy in the middle is shot in the chest, blood sprays almost one meter above and behind him on the wall. (00:33:25)
Continuity mistake: Charlie was standing in the hole he dug and his head was below ground-level, but when Eliza was talking to him, Charlie's head was above-ground. Half of Charlie's back was above-ground when his mother [Toni Collette] was outside. Front views of Charlie standing in the hole still showed him against dirt (head below surface-level) even after he was just shown with his head above-ground. (00:51:10 - 00:51:46)
Continuity mistake: The woman in black kicks Lin through a glass frame when they are fighting on the stage. When the camera changes angles to show the woman about to step through, the shape of how the glass at the top changes. (00:51:25)
Factual error: No matter how sophisticated the STEM chip is, it would not enable Grey (Logan Marshall-Green) to go from a completely horizontal position to a completely vertical position in one fluid motion, without bending his knees, and he does this several times in the film.
Visible crew/equipment: When the police woman falls off the boat when the shark hits it, on the right side of the screen, you can see a hand outstretched, as if reaching out to grab her. It doesn't belong to the only other person on the boat, since he's behind the wheel and completely out of reach. So, it belonged to a person who wasn't supposed to be there.
Continuity mistake: After Danielle stabbed Junior, his papers were by his feet. When Junior's mom found him, the papers were by his hands. The knife was also closer to his feet compared to when Danielle dropped it onto the floor. (00:03:39 - 00:04:30)
Continuity mistake: In the hospital, Henry has a laptop on his lap when his mother throws his financial papers off the bed. Susan quickly picks up the papers and when she turns around and reaches across Henry's bed to put the papers on the tray, the laptop is gone. (00:47:40 - 00:48:23)
Factual error: The accident takes place the night of July 18, 1969, and they show there being a full moon. That night the moon was actually waxing crescent with only 14% visible, and set at 10:27pm while the accident happened about 12:45am, so there was no moon in the sky anyway.
Factual error: The man cutting through the door is pictured holding a torch, but that type of torch is not a cutting torch. You also see a showering of sparks as though a grinder is being used. (00:42:00 - 00:43:00)
Other mistake: The private investigator has a full size Glock. The Glock 21 which is a .45 ACP has the lowest magazine capacity of 13 rounds. The 9mm capacity for the Glock 17 is 17 rounds. The PI exchanges gun fire and after he fires 7 rounds, his gun runs dry. Makes no sense to bring a half empty gun to a fight, plus he just got it back from his brother-in-law. (01:05:00 - 01:06:00)
Continuity mistake: When Nicholas Cage and his kid are enjoying a flashback, the ice lolly keeps shrinking and growing throughout the conversation. (01:14:00 - 01:15:00)