In 1960, before Disney bought Winnie the Pooh, there was an episode of Shirley Temple's Storybook being the story of Winnie the Pooh that used marionette puppetry with the characters.
Thus being a movie of puppets, this film is not associated with Jim Henson Productions. However some of the cast and crew are puppeteers that have worked in the Jim Henson studios for the Muppet media.