The behind the scenes story of the life of A.A. Milne and the creation of the Winnie the Pooh stories inspired by his son Christopher Robin.
Domhnall Gleeson
as Alan Alexander Milne / Blue
Margot Robbie
as Daphne Milne
Will Tilston
as Christopher Robin Milne / Billy Moon
Stanley Hamlin
as Christopher Robin Milne (Baby)
Dexter Hyman
as Christopher Robin Milne (Kid)
Sonny Hyman
as Christopher Robin Milne (Kid)
Alex Lawther
as Christopher Robin Milne (Teen)
Kelly Macdonald
as Olive Rand / Nou
Phoebe Waller-Bridge
as Mary Brown
Vicki Pepperdine
as Betty
Stephen Campbell Moore
as Ernest H. Shepard
Richard McCabe
as Rupert
