Continuity mistake: During the sign-up for the app at the beginning the girl says "I want to be Sarah." Look at her hair; mostly in front of her left shoulder, just a couple locks on the right side of her face. At the cut, hair behind the left shoulder and a bigger right bang. Camera angles and hairstyles switch again back and forth. (00:02:30)
Continuity mistake: Fancy does her sexy stroll singing "They Can't Take That Away from Me." She gets to the decanter and with a pop she pulls the lid in a close-up. You can see her motion rattles the leaves of the plant on the table, but in the next shot they are still, as if nothing happened. (00:11:35)
Character mistake: Casey is sixth of six male students standing in a row to individually demonstrate a karate move for Sensei. After the fourth student, Sensei passes up student #5 and says, "Next. Casey." Sensei completely missed the fifth student, the only other beginning white belt like Casey. (00:28:45 - 00:29:10)
Factual error: The royal parade is supposed to be of the Yorkshire Hussars, but the filmmakers instead borrowed the King's Troop, Royal Horse Artillery, complete with guns. Although the uniform was similar, the Yorkshire Hussars was a cavalry regiment until the Second World War, when it became an armoured regiment. It was never an artillery regiment.
Continuity mistake: When Hodaka first fires his gun whilst being threatened by the man, the shell casing lands on the ground beside him, right next to his head. A couple seconds later, when Hina goes to help him up so they can run off together, the shell casing has vanished from the ground. (00:22:06)
Continuity mistake: For a second time in the movie, someone buzzes June on the intercom. She tries to overcome her fears and get out of the apartment, but can't. She shuts the door, leans with the left hand on the doorframe by the chain, and lowers her arm. In the next shot, Naomi Watts is breathing deeply still with her hand by the chain. (00:06:05)
Continuity mistake: The protagonists escaped from captivity and managed to return to Harry's palace. Luka decides to leave to go look for his mother. Harry seems to send him off, and he is standing in the middle of the stairs, about 4 steps below the guard. Harry at this point is in close-up; the guard is not visible, and at the next cut somehow Harry shoves him off as if he were standing directly behind him. (00:16:00)
Continuity mistake: At the beginning of Aiai Liu's flashback, she is on a boat. Fellow prostitute Ping leans forward towards Hua saying he should treat them all fairly. Aiai she is intently cleaning a fingernail in one shot, immediately after she has the same hand placed on her cheek. (00:32:45)
Other mistake: Nicole was standing up holding a round cake with both hands and was able to tilt the cake down about 45° to show others the top without the cake sliding off the plate - or any icing shifting.
Continuity mistake: There wasn't much blood noticeable on the axe after it was used to chop off the mermaid's tail, but a little later when the man was carrying it over his shoulder, it was heavily covered in blood and dripping. (00:14:17)
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)
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: 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)
Continuity mistake: Sira pours Sprite into a glass until it is about three-fourths full, but the glass is closer to half-full when he hands it to his mother. (00:02:00)
Continuity mistake: Different views of Sarah riding in the passenger's side backseat of Hayley's car show her either leaning into the corner with her left arm stretched across the seat's back or her back against the seat with her right arm extended along the window. (00:28:50 - 00:29:32)
Continuity mistake: In the sequence with the pigeon that tries to topple the severed hand off the gutter, twigs are right next to its fingers or not, depending from the angle. (00:06:35)
Continuity mistake: Andrei is mentally rehearsing icebreaker lines for his first approach to Ramona. Fake macho Silviu sits by him and puts a blunt in front of him, practically under his nose. Reverse shot, and it's gone. (00:02:00)
Continuity mistake: Xiao Meng spent some time wrapping her father's (Professor Tao) left hand, going around his wrist/thumb and under his thumb (diagonally across his palm). When Tao was blown off the bridge and landed in the dirt, the bandage was NOT wrapped around his thumb (just around his wrist). (01:12:33 - 01:16:03)
Other mistake: Throughout this, a running gag is that Fred can't drive stick/clutch. However, in "What's New, Scooby-Doo?" Series 2, Episode 6 "A Scooby-Doo Halloween," he yells at Shaggy that he's riding the clutch too hard at the beginning of the episode. If the Mystery Machine has a clutch mechanism, he would know how to drive stick/clutch.