McGregor will play the adult Christopher Robin, who has lost his sense of imagination and is a businessman focused on work and success.

The studio also is bringing in Oscar-nominated screenwriter Allison Schroeder (Hidden Figures) to take a new pass on the script. Alex Ross Perry wrote the screenplay, with Tom McCarthy working on a later draft.

Milne’s Christopher Robin was inspired by and named after his own son, Christopher Robin Milne. He wrote about the character in two books, Winnie-the-Pooh (1926) and The House at Pooh Corner (1928), and other poems. Disney adapted the tales into several animated projects, including the 1988 series The New Adventures of Winnie the Pooh and the 2011 animated film Winnie the Pooh.

The Jungle Book producer Brigham Taylor is producing the project.

McGregor was most recently seen in Danny Boyle’s T2 Trainspotting and Disney’s live-action Beauty and the Beast with Emma Watson. He currently stars on the third season of FX’s hit Fargo, which premiered April 19, playing twins Emmit and Ray Stussy. He’s also attached to Drake Doremus' next film, Zoe, with Lea Seydoux. McGregor is repped by UTA, United Agents in the U.K. and Sloane Offer.

Schroeder wrote the script for Fox's hit film Hidden Figures, which was nominated for three Oscars, including best adapted screenplay. She is repped by Verve and Good Fear Film + Management.