Finally, Celia said, ‘Well, I’m jolly well staying in bed till Mummy comes.’ Now Norman hopped out. ‘No one stays in bed around here. There’s chores to do. ‘You coming?’ he asked Celia, none too gently. ‘Don’t be silly. I haven’t a thing to wear,’ said Celia crossly. Cyril had heard this many times before and never believed it, but this time it was manifestly true. All Celia’s precious new clothes were lying in the mud around the house. Celia lay in bed in her slip. She was hungry. She had to find something to wear. Those horrible peasanty children had destroyed her clothes. They owed her new things. There must be something somewhere she could wear until her mother came for her

that was in the book

so it may had been filmed but got cut out.