BEGIN SLIDESHOW New Christopher Robin poster has an abundance of cute Walt Disney Pictures (via Ellen DeGeneres) has released a new poster for Christopher Robin, the upcoming film featuring Ewan McGregor as the grown-up version of the title character. Check out the full Christopher Robin poster in the gallery below and let us know your thoughts in the comments! In the heartwarming live-action adventure Disney’s Christopher Robin, the young boy who loved embarking on adventures in the Hundred Acre Wood with a band of spirited and lovable stuff animals, has grown up and lost his way.