Biographer Dr Ann Thwaite tells the true story that inspired the 2017 film Goodbye Christopher Robin - a drama about the lives of Winnie the Pooh creator A A Milne and his son Christopher Robin.
Thwaite was a consultant on the film directed by Simon Curtis and starring Domhnall Gleeson, Margot Robbie, and Kelly Macdonald. Here she offers an insight into the relationship between Milne and his son and tells how his toys inspired the magical world of Hundred Acre Wood.
Thwaite is author of five literary biographies. Her 1990 biography, AA Milne: His Life, won the Whitbread Prize for the best biography, and Goodbye Christopher Robin, is drawn from this acclaimed book and is now published in paperback.
Here she talks to Nicolette Jones, children's books editor of the Sunday Times.
This event is part of St Hilda's College day at the festival.