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.
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.
Continuity mistake: Before Casey enters the lunchroom and until after he sits at the table and says, "We should do push-ups", the napkins in the holder (closest to the screen) are partially leaning toward the screen. When the camera shifts to an angled view of the napkin holder, the napkins that were leaning are straight up but some of the napkins on the opposite side are leaning (away from the screen). There also appear to be about half as many napkins. (00:49:30 - 00:50:07)
Continuity mistake: The dorky protagonist just bumped into the bike shop girl. She tells him "It's all good, man", to which he replies asking how's the bike. Behind him, a woman with a dog makes her appearance. Over 10 seconds of conversation pass, and the woman is still where she was, but in the shot that follows, when she says "I'm Cate, by the way", the woman warped past him, and is now behind her to the opposite end of the sidewalk. (00:07:15)
Continuity mistake: Throughout the movie, Peg's hair frequently changes from scene to scene and within a scene. When her hair has a blue ribbon around a bun at the top, her side parts are sometimes higher/lower and straight/jagged. The length of her hair varies, as does the amount of curl on the bottom. One of most noticeable variations in her hair length and curl occurs during her speech to her new employees at Personal Expenditures Garnering. It changes several times from just to the shoulders to a few inches below her shoulders. Back views of her hair tend to be shorter and front views tend to be longer. (00:44:42)
Continuity mistake: Catherine is in Brittany's flat and she sits down telling a bit about her past. Seen from behind she is touching the hair on the right side of her face, instantly turned into the left side at the cut. (00:16:25)
Other mistake: Jodie mentions wearing shoe size 13 more than once in the movie yet look closely and those are only size 10 shoes.
Continuity mistake: Scooby and Shaggy are lying face down on the massage table when the zombies arrive. Shaggy has his robe lowered baring the upper back, but in the close-ups you can still see the robe up covering his shoulders perfectly. (00:28:00)
Continuity mistake: In a flashback inside a pub, the protagonist writes his number on a coaster to hit on the waitress. During the scene, the coaster changes position repeatedly between shots. (00:25:55)
Revealing mistake: After most of the people trying to hang onto other people holding onto the ascending helicopter fell off, a downward view from the helicopter showed a man effortlessly hanging onto the landing skid and a woman just as effortlessly grasping his jacket's shoulder. (00:02:50)
Continuity mistake: Zeke is in the kitchen with his daughter. He is checking out Dick's driving license; in the close-up he is holding it with his left hand, but in the following shot, as she asks him "Where'd you find it?" he is holding it in his right hand. (00:10:15)
Continuity mistake: Enzo's red tag hanging from his collar usually can be seen, but he did not appear to be wearing the red tag outside when Eve told Denny she was pregnant or when sitting in the bleachers with Eve at a race. (00:19:48 - 00:21:09)
Continuity mistake: When Pinky barges into the protagonist's home, multiple times (for instance when he sits in front of her) her pigtails move behind her shoulders from the front and vice versa between cuts. (00:06:00)
Continuity mistake: The inspector is showing the singer the gruesome images of her friend. As he says "It's how we identified the remains", she raises her right hand, but in the next shot it's with the left hand that she's touching her lips. (00:04:45)
Visible crew/equipment: Ali's assistant sits in her office as she goes to apologise to him. But in the reflection of his glasses you can see the green screen which I suppose is meant be the windows of the office. (01:32:00)
Other mistake: When the characters go to the Himalayas, the whole time, like for 20 mins, including the confrontation scene, they are all wearing casual, short-sleeved shirts. You can see Mr. Burnish's henchmen wearing winter clothing, while the main characters don't freeze to death. They only start getting cold after a long time.
Other mistake: The opening (like most of the movie) does not make much sense, so you can pick your kind of mistake here; the special effects are cartoonishly bad throughout the big firework explosions. When John Abraham is knocked through a window by a rocket (which takes off with a 270° turn without even rising) to the face, he gets up unscathed and starts screaming for Junky and Chandu. The camera moves from them to him and he's running with the girl in the red costume in front of him (which was way behind, safely, when he crashed through the window, so already that is wrong), and then there's a wider shot. In that shot, you can tell that Adams is bumping into the same people as before and the distances between the extras are all wrong. (00:06:35)
Other mistake: The Burglar (while tied to a chair and talking about "My Darling Clementine") says, "Apex of Ford's art, you feel me?" Vikar (James Franco) responds, "I feel you." The movie starts in 1969, but rapper E-40 (Earl Tyrone Stevens, Sr.) - "slang master" - supposedly created the expression "you feel me" in the early 1990s. (00:19:53)
Continuity mistake: When Emma is with the clients at the beginning of the movie, Doug's ginger pen once he mentions 'rebranding' is either in his hand or on the notepad, depending on the angle of the shot. (00:04:10)
Continuity mistake: After the alien abduction, Emmet plans to lead a rescue mission and opens the gate asking "Who's coming with me?" During the sequence, the shadows change completely. At first he is not casting much of a shadow, then it reaches the metal doors, then it stops midway towards it. (00:20:55)