Continuity mistake: After the kids are told Sara hung herself at the hospital, Chuck asks "what are they waiting for, let's go". Stella is bending down to pick up the book in one shot, but the angle cuts while Chuck is still saying the word "go" and suddenly he has vanished from the room as the other two start to leave.
Continuity mistake: The two cucumber slices that Jesper puts in the palm of the Drill Sergeant change position between shots - in particular, in the close-up with Jesper walking away and putting the teacup in his hand as well, the two slices are side by side, while they are instead one on top of the other before and after. (00:02:25)
Other mistake: Aerial views of Yonder gave the impression that a basic grid pattern was used - parallel horizontal and parallel vertical lines that form right angles; yards were of equal area, either a square or rectangular lot. [However, some of the views from the couple's car as they were trying to find the exit showed some slightly curved roads that didn't fit the grid.] Following the sun as a way out, the couple was jumping over fence after fence - but they could've simply walked along perpendicular roads.
Suggested correction: But they tried getting out using the road by car, and they felt that the roads were causing them to go into a loop. So instead they take a route they know for sure is straight. Btw, Yonder isn't real so the way the roads bend and how the grids are made up is purely an optical illusion.
Walking (not driving) along the perpendicular fences would be the same difference only easier and less exerting. If/when they encountered a fence that looked different, that's when they could jump over it to see if it made a difference. How could they "know for sure" that the fences they were jumping over took them in a straight line? Also, they realised the clouds weren't real, so following something in the sky (the sun) was not necessarily a good idea. [This will be my only response here.].
Continuity mistake: At the skate park (which is supposed to be Thursday after school), Max is wearing the clothes he wore on Wednesday and Friday - not the clothes he wore in school on Thursday.
Factual error: The family supposedly left Ex-Yugoslavia (what part isn't made clear exactly) "because of the war", but the only conflict still going on there in 1999 (when the family is still there in the opening scene) was the NATO bombing of targets in Serbia in order to get the Serbs to lay off Kosovo, and that was long over by Christmas of that year.
Continuity mistake: Throughout the movie in several scenes the living room has 2 couches even up until the Parks are getting ready to leave for their camping trip, 1 big one and one small. The very next scene when the Kims are getting drunk, the small couch has disappeared. This must be to make room for the Kims to slide and crawl out from under the table. The strange thing is when the Parks come back home, they don't notice that one of their couches is missing. It remains missing until the end.
Plot hole: Dr. Seager told Beth that "It [Z] was all in her head" and only she could stop it. How, then, did her son Josh have the same "imaginary friend Z"? Moreover, if Beth had Z as a friend when she was eight years old, why didn't she remember him or have her memory jogged when Josh first told her about his friend Z? Also, if Beth told Z that they would be together forever (get married and have a lot of kids), why would Z need to go through Josh to get to her?
Factual error: She fires the entire magazine of a Glock into the alligator's mouth. When it is empty, rather than the slide locking back and the trigger freezing, there is an audible click every time she pulls the trigger. This could not happen.
Factual error: In 1940 3 of Alf White's men are arrested. As they are taken out of the pub they were in Alf and his son stand in the doorway. To their left (viewer's right) are posters for Floyd Patterson (who would have been aged 4 or 5 at the time) and the Platters (formed in 1952) and Lonnie Donegan (started performing 1949). (00:20:03)
Continuity mistake: When Ash and friends are entering the wharf, there are two people that change between shot. There is also a person who goes from having his right hand in his lap to having it scratching his head. (00:23:06)
Character mistake: Queen is an attorney and should know how to conduct herself as a passenger in a car pulled over by police, yet she fails to behave in an acceptable way. Even though certain things may be permissible under certain circumstances, a lawyer should know exceptions and extenuating circumstances, but she apparently does not. She did not have the right to interfere with a police officer and "demand to know" or get out her cell phone to record if she was told to keep her hands where he could see them. (00:10:25)
Character mistake: Right at the beginning of the movie, introductory technobabble. "In this canister, there's a solution of protons. The canister is attached to a rotor circuit that generates the protons to the speed of light." I believe the science genius and creator of time travel mixed up the words "generate" and "accelerate" here. (00:00:50)
Other mistake: Jesse does not talk because of his traumatic childhood (which includes being kidnapped at a young age by Mr. Charlie), so it doesn't make much sense for him to be the narrator.
Continuity mistake: When Gatsby and Chan are talking in the taxi, her hair appears to be tucked behind her ear when the camera is on her left but it isn't when the camera is on the right. Every time the camera changes, the difference in her hair can be seen. (00:33:51)
Continuity mistake: After being buried alive, Wake returns to attack Howard with a pick. There isn't a speck of dirt on him.
Revealing mistake: Although the background scenery in the basement (behind the judge and Ron) changes with camera views, what is shown rarely (if ever) corresponds to the correct size and angle/location that would be expected. For example, the file cabinet in the corner behind Judge Straight shows up in different places, some very close to him and others at a distance; its size is not proportionate. Sometimes, the brick wall is directly behind the judge but to the right (of the screen) at other times. (00:03:28 - 00:11:29)
Deliberate mistake: The prisoners in the dark dungeon would not be able to read the letter (to Miss Dudley from Jason Flemyng that the carrier pigeon had) or see such a clear reflection by pouring water on the stone floor and holding the letter (written backwards) by the water. The room was suddenly lighter when doing so, but it wasn't clear where the light was coming from. Also, sunlight coming through the small window would not beam straight down along the wall. (00:07:23)
Continuity mistake: At the beginning of the movie, the waitress notices that Emilio for the first time in years has not completed his Sudoku yet. The sequence begins with her stopping by him and waving her hand, upturned, but the hand is then on his shoulder. She repeats the gesture at the cut. (00:01:50)
Deliberate mistake: Carson's [John Travolta] cat Raymond did not appear to be in the pet carrier when he was running out of the building to his car or when walking to his office and placing the carrier on the desk. (00:02:15 - 00:03:30)
Continuity mistake: The spacing (almost touching versus several inches apart) and appearance (shape and whether there are shoots) of the two flowers in the vase on Estelle's/Betty's table at the restaurant vary. Sometimes, the flowers on her table look more like the ones that could be seen on the table in front of hers after Brian/Roy entered the restaurant. (00:03:40)