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 season 20
Starring: Gwyneth Powell, Lee Cornes, Sally Geoghegan, Stuart Organ
Genres: Family
Continuity mistake: The third years in this series were first years in series two.
Vince: Where are you going?
Hollo: Nowhere.
Vince: Can I come?
Hollo: If you want to.
Trivia: When Banksie, Jackie, Jean-Paul and Sarah first arrive at the disused factory to drive Phil's car, the scaffolding in the background is on the Eastenders set which was under construction when this series was being filmed. From 1984 until 2001 Grange Hill was made at the BBC Elstree studio's, where Eastenders has been filmed since 1985.