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.
Grange Hill (1978)
1 revealing mistake in Episode #20.18
Starring: Gwyneth Powell, Lee Cornes, Sally Geoghegan, Stuart Organ
Genres: Family
Field Trip - S6-E6
Continuity mistake: When Roland plays his tape recorder on the coach, the woman on the tape says "lightest lemon sponge I've ever tasted - she used to bake, yes I remember, mind you she worked hard that woman..." But in the cafe Roland didn't start recording until she said "mind you she worked hard..."
Vince: Where are you going?
Hollo: Nowhere.
Vince: Can I come?
Hollo: If you want to.
Trivia: Future supermodel Naomi Campbell appears throughout series 5 as an uncredited extra.