Visible crew/equipment: When Maddie's mother Suzy arrives at school, you can see a boom mike shadow on her shirt.
Continuity mistake: Tanya and Karen Young are step sisters. In this series Tanya says her family came about by her father marrying Karen's mother, but in later series it had changed round, with Karen's dad marrying Tanya's mum.
Factual error: Shannon asks Leah if she knows what happened to Tom Smith - she replies that Tom has gone to university, but in the previous series Tom was only in his first year of sixth form, and it takes at least two years in the sixth form to study for the A levels required for a university place.
Suggested correction: Although normally A-levels are taken after 2 years, it is possible (and often done) to study them in one year.
Continuity mistake: Leah and Shannon are in the computer room - Mr Malachy comes in and talks to Leah, Leah's hair is loose. The angle changes when Malachy leaves the room and Leah's hair is now neatly tucked behind her ear.
Continuity mistake: When Hudson is setting up the equipment for the sports day Shannon jumps on the mattress in front of him and her jumper lifts up, exposing her midriff. When the angle switches to behind Hudson, Shannon's jumper is tucked in to her jeans and her legs have also changed position.
Other mistake: When Hudson is briefing the girls' football team he calls Mel Sarah, mixing up the character name (Mel) and actress (Sarah Lawrence).
Other mistake: All throughout this series Grange Hill is celebrating 125 years on the same site, but Grange Hill didn't move to this site until series eight in 1985, when the school merged with Rodney Bennett and Brookdale schools, this being the former Rodney Bennett site.
Continuity mistake: When Tanya, Emma and Annie dress as suffragettes and handcuff themselves to the goalpost the crossbar is level with their shoulders, but at the end when the lights go out and all three girls shout for help the crossbar is above their heads, and their arms have changed position accordingly.
Revealing mistake: Alex tries to commit suicide in the swimming pool. Spencer and Baz rescue him by lifting him to the water's surface and floating the unconscious Alex across the water's surface. Just before he reaches the side of the pool the unconscious Alex reaches out and touches the side wall of the pool.
Continuity mistake: When Alex and Alison get out of the limousine at the premiere, Alison drops her purse and Alex bends down to pick it up, splitting his trousers. The purse is in his right hand, the angle changes and the purse is now in his left hand, then another angle change and it's back in his right.
Continuity mistake: In the first episode of series 26, Emma said her birthday wasn't until the summer holidays. But in series 30, she celebrates her 16th birthday by episode 2, making her one of the oldest in her year.
Continuity mistake: In the panic when the hall is evacuated for the bomb alert, Sammy's tiara is knocked off, the angle changes and it is back on her head. Then when the pupils are allowed back in, Sammy and Alex are the first pupils back in the hall - Alex picks the tiara up off the floor and places it on Sammy's head.
