Continuity mistake: When Peter and MJ hug on Tower Bridge he gets some blood from his face onto the left shoulder of her jacket. From other angles there's no blood.
Continuity mistake: Jesse Plemons gained a considerable amount of weight since "Breaking Bad" ended. As such, Todd Alquist is noticeably husky in his flashback appearances in this movie, even though in the original timeframe, he was more slender.
Continuity mistake: The injury Schofield suffers to his neck is healed by the time that he gets to the front line.
Continuity mistake: Robotnik's shaving his head, leaving smudges on it. A shot later his head's suddenly clean. (01:29:10)
Continuity mistake: In House of 1000 Corpses and The Devils Rejects Captain Spaulding had nasty crooked black teeth. In the beginning of this film when he's doing an interview his teeth are super white and straight.
Continuity mistake: In A Dog's Purpose, Hannah has a daughter and a young grandson. In A Dog's Journey, the daughter and grandson no longer exist and have been replaced by a son who has died, leaving behind a widow and a much younger granddaughter.
Suggested correction: Actually Hannah has more children than the ones show in the first movie. In the book it is explained that she had two daughters and a son.
Suggested correction: In the movie, Ethan tells Hannah that she raised two children.
Continuity mistake: When Danny goes to their old room at the Overlook, the bathroom door only has one broken panel but in the Shining, both panels were smashed when Jack heard the Snow Cat arriving.
Continuity mistake: When Aladdin dances in front of Jasmine his hair keeps swapping between perfectly brushed and messed up.
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: Despite having the Phoenix power at the end of X-Men: Apocalypse, which manifests around her as a Phoenix firebird and she uses to defeat the titular villain, Jean Grey doesn't actually get merged with the entity until 9 years later in this movie.
Suggested correction: Jean used her full psychic powers in the previous film, not the Phoenix Force. Even without the Phoenix Force she was an incredibly powerful, Omega Level mutant.
The Phoenix firebird is literally shown to be emerging from Jean's body when she kills Apocalypse. She can't both have the Phoenix firebird already within her and then somehow also have it invade her body in this film. The mistake is valid, and I would argue it should be listed as a plot hole more than a continuity error.
Continuity mistake: When Butler resigned he put his badge on the President's desk but when the President walks around the desk it has disappeared. (01:44:42)
Continuity mistake: It's a clear day at the end of John Wick 2 but pouring down raining at the beginning of John Wick 3, which follows immediately afterwards.
Continuity mistake: When Dumbo is born, Medici is taking a bath. The amount of foam on his arm changes between the front and back shots.
Continuity mistake: After the beast and David break the window and fall down they do so beside each other, but when they hit the ground they are separated by several feet.
Continuity mistake: When the main characters first meet up with the old terminator at his residence, Sarah tries to turn her shotgun on him, but is stopped. Instead, the round goes off punching a hole in a wooden ceiling of the front porch. The resulting debris lands on Arnold's T-shirt, standing out because of the T-shirt's dark color. Several times the camera angle changes and the debris appears and disappears several times throughout the shot. Most notably a splinter of wood on his shoulder.
Continuity mistake: After we first meet Grimmel, there's a scene where a dragon charges him before he puts it to sleep. The view from under the dragon's feet show him getting very close to Grimmel but when the angle changes suddenly he's much further back before he's shot.
Continuity mistake: Red is barefoot for a long period in the movie, but when they run to the boat she's wearing barely-visible slippers, presumably to protect her feet while running outside.
Continuity mistake: When the male elder fails to die after jumping off the cliff, a few of the Hårgas walk over to him to smash his head with a mallet. When the first Hårga hits him on the head, there is a visible bloody injury caused by the hit. When the second Hårga goes to hit him, just before his head breaks apart there is no sign of the first hit. (01:12:30)
Continuity mistake: After Sandler shaves in the cabin he gets back on the deck unshaved. When they appear at the dinner he is shaved.
Continuity mistake: According to the countdown, Jordan has less time to live (about 3 minutes) than Quinn, which makes the whole end with the morphine pointless. (01:09:00)