In Billy Elliot at the start of the film when Billy runs out there is a little girl standing in blue at his wall. What is her place in the play (she appears sometimes through the film)?

The little girl who appears as a minor character in the film version of Billy Elliot represents another child of a local family and another sufferer of the Coal Miner's Strike who will be hurt. In the play, this character is replaced by a more prominent character, a little boy. He appears alone onstage at the beginning and through various parts in the stage production.