Get a rare glimpse into the relationship between author A.A. Milne (Domhnall Gleeson), creator of the beloved Winnie-the-Pooh stories, and his young son Christopher Robin (Will Tilston). The international success of the books that enchanted the world comes at a cost to the author, his son, and his wife Daphne (Margot Robbie), in this moving story about success and family.