Ewan McGregor's grown-up Christopher Robin is sought out for help by Winnie the Pooh, his imaginary friend from childhood, in the first full-length trailer for Disney's live-action film. However, it turns out Christopher is actually the one who needs saving.

Released nearly three months after the initial teaser, this trailer lays out the premise of director Marc Forster's film, which catches up with the little boy from A.A. Milne's beloved stories. Now, though, he's an office worker who long ago lost that spark of imagination that fueled so many childhood adventures -- that is, until Winnie the Pooh reappears, seeking his assistance in finding the other residents of the Hundred Acre Wood.

Christopher Robin is stuck in a job where he is overworked, underpaid and facing an uncertain future. He has a family of his own, but his work has become his life, leaving little time for his wife and daughter, and he has all but forgotten his idyllic childhood spent with a simple-minded, honey-loving stuffed bear and his friends. But when he is reunited with Winnie the Pooh, now tattered and soiled from years of hugs and play, a spark is rekindled, and he is reminded of the endless days of childlike wonder and make believe that defined his youth, when doing nothing could be considered something. Following an unfortunate mishap with Christopher Robin’s briefcase, Pooh and the rest of the gang including Piglet, Eeyore and Tigger, step out of the forest and into London to return the crucial possessions…because best friends will always be there for you.

Directed by Marc Forster from a screenplay by Alex Ross Perry and Allison Schroeder and a story by Perry, based on characters created by A.A. Milne, Christopher Robin stars Ewan McGregor as Christopher Robin, Hayley Atwell as his wife Evelyn, Bronte Carmichael as his daughter Madeline and Mark Gatiss as Keith Winslow, Robin’s boss. The voice cast includes Jim Cummings as Winnie the Pooh, Chris O’Dowd as Tigger, Brad Garrett as Eeyore, Toby Jones as Owl, Nick Mohammed as Piglet, Peter Capaldi as Rabbit and Sophie Okonedo as Kanga. The film arrives Aug. 3.