Continuity mistake: Mr Robson parks his red Vauxhall Cavalier outside the school gates with a blue VW Golf next to it backed up to the fence. When Amy walks in there is a different red Cavalier parked where Robson's car was parked, and the blue Golf has turned round and is now facing the fence.
Revealing mistake: Carlene makes Joanna a cup of coffee in the common room after finding her drunk in the toilet. Joanna refuses to drink it and drops the cup, breaking it - it's obvious that there was never any coffee in the cup.
Continuity mistake: In the cafe when Gerald says his line "must dash got a deadline to meet on the school magazine" the same girl (with long brown hair) walks behind him twice within a few seconds.
Continuity mistake: When the helicopter descends there is a passenger in the front seat, but as it lands only the pilot is on board. And when Mr. Parrott approaches two men jump out of the back seat of the helicopter to "kidnap" him.
Continuity mistake: Richard and Matthew are on reception duty, and Richard is hacking into Mr. Hargreaves' computer to see if he can find out what Hargreaves did with the money that was for the trip to Russia. The scene cuts to Mr. Robson's geography class where Justine has a message from Mrs. McCluskey to Fran. Richard and Matthew are seen in this class, but when we cut back to reception Richard and Matthew are still on reception duty.
Continuity mistake: After Fran has read the diary page about herself she rushes off to the common room and is right behind Richard, Ray and Nick, but when she enters the common room, Richard, Ray and Nick are already inside sitting down.
Audio problem: When Matthew runs out of the hall after taking part in the play and being frightened by the gun, you can hear Mrs. Munroe shout "quiet!" but you can see that her mouth doesn't move.
Revealing mistake: When Pete asks Trev and Ted to look after the pizza place so he can take his daughter to hospital, Ted goes outside to speak to Chrissie. You can see a woman and a little girl in a pink dress walk past - the little girl has obviously seen the film crew and can be heard asking her mum "are we on the telly mummy?"
Revealing mistake: After Mike has finished giving evidence at the court, as he comes down the stairs you can see Mauler and Trev waiting behind the door for their cue.
Continuity mistake: When Natalie and Raju are talking in the playground just before they rush off to the room where Justine and Chrissie are printing the T shirts, Natalie's hair changes position between shots from being over her back to over the front of her shoulders.
Episode #3.6 - S3-E6
Continuity mistake: Karen and Tracey are climbing the tree Adrian is behind Tracey, Karen tells Adrian not to come up as there's no room, but when the angle changes to looking down the tree trunk Adrian has disappeared, and less than a minute later Karen and Tracey are back on the ground.
Visible crew/equipment: Boom mike shadows are on the door behind Mr. Mitchell when he tells the boys to give Hughes some encouragement in the quiz, and on the wall after everyone applauds Mr. Llewellyn's speech after the quiz.
Visible crew/equipment: A boom mike shadow is across the desks when Mr. Mitchell is telling his form about the new disciplinary procedures.
Visible crew/equipment: The shadow of a boom mike can be seen on the wall behind Mr. Sutcliffe when he tells Tucker off for leaving his chips on the chair.
Visible crew/equipment: There's a boom mike shadow on Trisha's head when Mr. Mitchell separates her and Tucker.
Visible crew/equipment: The boom mike shadow's visible on the changing room wall when Mr. Baxter says "who's gonna win?" and the boys reply "Grange Hill."
Episode #2.9 - S2-E9
Visible crew/equipment: A boom mike shadow can be seen on the coat rail behind Mary when Cathy storms out of the cloak room.
Episode #2.7 - S2-E7
Visible crew/equipment: A boom mike shadow is on Madeline Tanner's desk when Mr. Mitchell says "your response is underwhelming."
Continuity mistake: In episode 16 Calley takes her boyfriend's works pass out of his wallet - the name on the pass is John Cooke. In this episode when the security staff look at the computer screen to find out whose pass let Calley, Ronnie and Georgina into the animal house, John's surname has changed to Hunter.
Continuity mistake: When Ayeesha and Akik walk into school Mr. Hankin's blue Morris Minor is parked next to a white Ford Escort mark 3 which the Timpson brothers are leaning on. The camera then goes back to Hankin getting out of his car - there is now a white Ford Escort mark 2 next to Hankin's Minor.
