Continuity mistake: During the scene when Mickey walks into the urinals trying to steal the videotape, he has the phone in his hand calling the switchboard. He then puts it into his hand and turns the taps on. He washes his hands and leaves the urinals without the phone in his hand. Then, in the next shot, he walks through the door with the phone in his hand and puts it into his pocket. (00:11:00)
Continuity mistake: When Ash walks up to the machine we see that, after he puts his card in, the screen is black/off. When he hits the screen there is a split-second clip of the screen looking out at Ash with green text on it. In the next shot the screen is back to black.
Continuity mistake: In the final con scene at the private gambling club, Danny and Mikey are arguing about handing over the money to the guy conned at the very start of the show. Mickey punches Danny in the face, causing a split lip. The location of the blood on Danny's chin changes during the split shots.
Character mistake: The amount of money the team allegedly scammed the first mark for keeps changing throughout. In the first scene, it appears to be £25K (the mark gives them this as a bribe). However, in the next scene when the team divide the money up, it is stated to be £105K. However then, in the penultimate scene, when the mark thinks Mickey has given him "60-70K" (Ash's words) from their new horse racing con, he states that he has made a 50 grand profit: thus suggesting again he was scammed out of 25k.
Continuity mistake: The scene where Danny is lying on the sofa in the flat listening to music. Stacey throws down an envelope of money onto his chest. The banknotes spill considerably out of the envelope in the first shot. Two shots later and without either Danny or Stacey having touched the money, the banknotes are mysteriously tucked back inside the envelope.
Deliberate mistake: When Sam first meets Mickey (who is posing as a bank robber), Mickey says he needs Sam to state that he needs Mickey's help in robbing a bank, so if Sam turns out to be an undercover cop, Mickey can plead entrapment. This is a classic error. Entrapment only exists where a cop actively persuades a criminal to do something he otherwise wouldn't have done - which is not the case here. If Mickey as a con artist knows this (which is likely), it's a deliberate mistake, otherwise it's a factual error. (00:30:09)