Continuity mistake: At the shooting range, the teacher with the machine gun shoots the heads off several of the "ducks". But when the girls with ducks on their heads come up, a second later, all three ducks are intact.
Revealing mistake: When the girls jump out of the bus at Trafalgar Square, members of the public behind the railings can directly be seen watching and recording the filming.
Continuity mistake: At the beginning of the move Carnaby Fritton introduces himself as Camilla's (the headmistress) younger brother. However, when he later visits her to discuss turning the school into a hotel he directly calls her his little sister.
Factual error: When Annabelle is in the shower, the other girls film her and claim to be streaming it Live on Youtube. Live streaming is only available to Youtube Partners and wasn't even a feature until 2010.
Revealing mistake: When Anabelle smashes the statue, her phone disappears. The statue just seems to spontaneously shatter.
Continuity mistake: When the first years are styling Anabelle, two of them are shown using brushes. But, when they show Annabelle's face, the arms styling her clearly belong to larger/taller people.
Chosen answer: She wasn't in one of the groups (Geeks, Emos, First Years, Posh Totties and Chavs), she was an outsider. The girls later give her a makeover as each one of the cliques, but she ended up as herself and said she "felt like a St Trinian".
Sierra1 ★