Continuity mistake: When Sapper Morton is in his protein farm, he begins to stand up when finishing, but in the next shot, his hands are suddenly reaching back into the water. (00:03:10)
Continuity mistake: When Sapper Morton is fighting K, he pushes him into the wall, causing the wall to break and the two fall through it. The damage from the wall leaves rubble scattered on the floor around them. Sapper begins to choke K, and the rubble surrounding them changes position when the shot cuts to a closer angle of K. (00:08:15)
Continuity mistake: When K is trying to scan Sapper Morton's eye to get the serial number, K sticks his left index finger into Sapper's eyelid and his three other fingers placed on his forehead. The shot cuts to a side view where K's index finger is now on Sapper's forehead, along with the rest of his hand. (00:08:45)
Continuity mistake: Just after K has finished scanning Sapper Morton's eye, he stands up and says "Please don't get up" to him. The shot then cuts to Sapper lying on the floor and his right lower arm is raised. It then cuts to a wide shot of the room and Sapper's right arm is suddenly on the floor. (00:08:59)
Continuity mistake: K gets into his car after taking out Sapper and picks up a police report card from the dashboard to fill out. Whilst the car voice is heard saying "Incoming LAPD re-codec hash", K picks up a pen and places his right hand over the front of the report. His fingers are placed flat on top of the card when he does so. But then it cuts to a close-up shot of the card, where his fingers are now curled and the side of his hand is placed against it. (00:10:35)
Continuity mistake: In Sapper Morton's garden, when K finds the small plant next to the tree, he sniffs the plant and lowers his hand slightly, with his hand and the plant pointing upwards. The shot then cuts to an angle further away, where his hand and the plant are suddenly pointing to the side. (00:11:50)
Continuity mistake: When K is at his apartment, Joi lights his cigarette which smokes slightly. The shot cuts to a different angle, and there's much more smoke. (00:18:20)
Continuity mistake: When K is smoking a cigarette in his apartment, he blows the smoke towards Joi which passes through her. K then lowers the cigarette to his lap, and some additional smoke can be seen emerging from the cigarette at the bottom of the shot. The shot cuts to K beginning to move his legs, and the additional smoke has vanished. (00:18:25)
Continuity mistake: When K and Joi are talking at the apartment after K returns home, Joi picks up the Pale Fire book and K tells her she hates that book. Behind K's head is some smoke from the cigarette he smoked when he is saying the line. Joi then says she doesn't want to read either, and the smoke behind K's head has disappeared. (00:18:45)
Continuity mistake: When K shows Joi the emanator he got for her, he has a cigarette in his mouth in one shot, but when he opens the box in the next shot, the cigarette has suddenly gone from his mouth to his hand. (00:19:15)
Continuity mistake: When K and Joi are out on the balcony, there is a shot focusing on K where he attempts to place his hands on each side of Joi's face, almost touching the back of her head. The shot then cuts to a shot focusing on Joi, where his hands are now only around half way past the side of her face. (00:22:25)
Continuity mistake: When Joi freezes whilst Lieutenant Joshi attempts to call K, in the shot where the voice message is playing, there is a long, thick strand of hair across going across her cheek. When K goes to leave the balcony after seconds later, the hair is now much shorter and thinner. The direction of the hair across her fringe also changes between shots. (00:23:10)
Continuity mistake: When the police are examining the bones found in Sapper Morton's locker, when Nandez says "The Soyuz samples indicate she's been buried for thirty years", the shot is focusing on the table with the bones on it. A doctor is examining one of the bones in the background, but in the next shot, he is suddenly holding something with his hands raised away from the table. (00:24:05)
Continuity mistake: When the LAPD are looking over the bones, there is a shot of the teeth from the skeleton being placed on a table one at a time. The shot cuts to another angle of the table to focus on the hair sample, and the part of the table where the teeth have been placed is still visible in shot, but the teeth are suddenly nowhere in sight. (00:24:05)
Continuity mistake: When Coco is examining the skeleton, Lieutenant Joshi is leaning against the medical table with her elbow a couple inches away from the skull and upper torso bones. A couple of shots later, when the camera focuses on the bones, Joshi's elbow is not against the table. Then in the next shot, her elbow is back again. (00:24:30)
Continuity mistake: When Coco is examining the skeleton, the shots of Coco in focus show Lieutenant Joshi in the background leaning her elbow on the medical table, and remains this way until Coco says "Sorry" after referring to Sapper Morton as a sentimental skin job. Joshi then asks where's the kid and she suddenly has her arms crossed and not leaning on the table. This isn't very easy to see when she is asking, but is noticeable when Coco gets up from his seat in the next shot. (00:25:35)
Continuity mistake: After examining the skeleton, Coco gets up from his seat and K starts to walk towards the console to examine the skeleton himself. When K begins to walk over to the console, Joshi has her arms by her side, but in the next shot, her arms are suddenly crossed. (00:25:50)
Continuity mistake: When Lieutenant Joshi is talking to K in her office, her whiskey glass is empty in one shot, but when she goes to sit down, her glass suddenly has some whiskey in it. (00:27:55)
Continuity mistake: When Lieutenant Joshi is instructing K to kill the replicant child, in the shot where Joshi asks if he's telling her no, her whiskey glass is on the windowsill, but when she says "attaboy" a few shots after, the whiskey glass is suddenly in her hand. Joshi wouldn't have picked up the glass in between shots because she was waiting for K to reply. (00:27:55)
Continuity mistake: Lieutenant Joshi is talking with K in her office, instructing him to kill the replicant child, leaning against a window. After K says "To be born is to have a soul I guess", Joshi replies "Are you telling me no?", walking away from the window. K then says he wasn't aware that was an option, and Joshi is suddenly leaning against the window again. (00:27:55)
Answer: Think of any manufacturing process. Samples of new products are frequently created and then immediately destroyed. Also, the new replicant would require processing, training, etc. It was simpler for him to just dispose of the test.