Continuity mistake: When the girls give Annabelle all the makeovers, the first is 'odds', second is 'chavs' (with gold necklaces and side ponytail), third is 'posh totty', fourth is 'geeks', and before the fifth 'emo' makeover, Annabelle is made up like a chav once again. (01:03:15)
Continuity mistake: When Kelly, Taylor and Andrea reach the balcony over the audience, there are two large paintings and a sculpture behind them. There are two large paintings on the balcony across from them as well. In the following shots the sculpture switches from male to female repeatedly, and the painting from the opposite balcony actually appears on the other side. For example, when Kelly whispers, "We need more cover," the sculpture is male, but when she climbs over the banister to the zip line, the sculpture is female. Also, when Miss Fritton swings across to rescue Kelly, the painting behind her is the same one that should be on the opposite balcony. (01:15:25)
Continuity mistake: After Kelly uses the crossbow, the line is wrapped around the banister, centered between the ten balusters. In following shots, itÂ’s either at the right end of the banister, or just hanging over the banister, or wrapped at the center again. (01:16:10)
Continuity mistake: During the grand final of School Challenge, in every overhead shot of the zip line, host Stephen Fry is seen below wearing the mortarboard, but in all shots facing him he is bare-headed. (01:17:20)
Continuity mistake: When Flash is writing Theft next to no.6 on the board, Blackmail has appeared next to no.5 - Flash couldn't have written it on the board previously because when we see the board (before Theft is written on it), there is a blank space next to no.5.
Continuity mistake: When the girls are crawling back along the cable, there is a shot from just in front of Steven Fry which shows them behind him, when every other shot shows that the cable is over the audience.
Continuity mistake: When Flash and the girls are going through the 7 Laws of Crime, kidnapping is written on the board next to the no.4. When it comes back to the scene a little later, Kidnapping is no longer on the board.
Continuity mistake: When Colin Firth is tasting the vodka, he dips his index finger into the drink, but he tastes it with his middle finger.
Continuity mistake: Before the heist, when Kelly is pulling herself across the cable, the locking carabiner hanging from the line pulley flips over and turns itself upside down between shots, which is impossible to do with Kelly's weight hanging from it.
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.
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.
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 ★